I want to save a two pages forms with multiple checkboxes values in database with Laravel 8

I have two pages for making a survey. The first page have a form with the informations of person (firstname, number, city …) when a user submit this first form i take the information to a session a i redirect to a second page we have 15 question to answers with checkboxes, any question could have many answser.
I’m trying to get the answers from the checkboxes in the same session to store them in databases. Each question can have several choices. I’m not sure how to handle this in my controller.
Someone can help me.
thanks in advance
My views page

@extends('layouts.authenticite')

@section('content')

<div class="div-block-36"><img src="{{ asset('public/authenticite/images/aaa.png') }}" loading="lazy" width="676" alt="" class="image-10"></div>
    <section id="contact-form" class="contact-form-2 wf-section">
      <div class="container-5 w-container">
        <p class="paragraph-9 mobile home">Répondez le plus spontanément possible. Il n’y a pas de bonne ni de mauvaise réponse.<br>‍<br>Remplis le formulaire ci-dessous<span class="text-span-3"><strong class="bold-text"> </strong></span></p>
        <div class="w-form">
          <form method="POST" action = "{{ route('test.store') }}"  id="wf-form-Contact-Form" name="wf-form-Contact-Form" data-name="Wf Form Contact Form"    class="form-3">
              @csrf 
            <div class="contact-form-grid">
              <div id="w-node-_573c6b07-3024-7eba-ed02-c2900c89f863-3fbbfe56">
                  <input type="text" class="text-field-5 w-input" maxlength="256" name="prenom" data-name="First Name" placeholder="Prenom" id="First-Name" required=""></div>
              <div id="w-node-_573c6b07-3024-7eba-ed02-c2900c89f865-3fbbfe56">
                  <input type="text" class="text-field-5 w-input" maxlength="256" name="nom" data-name="Last Name" placeholder="Nom" id="Last-Name" required=""></div>
              <div id="w-node-_573c6b07-3024-7eba-ed02-c2900c89f867-3fbbfe56">
                  <input type="email" class="text-field-5 w-input" maxlength="256" name="email" data-name="Email" placeholder="Email" id="Email" required=""></div>
              <div id="w-node-_573c6b07-3024-7eba-ed02-c2900c89f869-3fbbfe56">
                  <input type="tel" class="text-field-5 w-input" maxlength="256" name="telephone" data-name="Contact Phone Number" placeholder="Numéro de téléphone" id="Contact-Phone-Number"></div>
              <div id="w-node-_573c6b07-3024-7eba-ed02-c2900c89f86b-3fbbfe56">
                  <input type="text" class="text-field-5 w-input" maxlength="256" name="ville" data-name="Ville" placeholder="Ville" id="Ville" required=""></div>
            </div><input type="submit" value="Envoyez"  class="submit-button-3 w-button">
          </form>
          
        </div>
      </div>
    </section>
    
@endsection
@extends('layouts.authenticite')


@section('content')


<div class="div-block-36"><img src="{{ asset('public/authenticite/images/aaa.png') }}" loading="lazy" width="676" alt="" class="image-10"></div>
<div class="w-container">
    
   <div class="form-wrapper w-form">
      <form  method="POST" action = "{{ route('questions.store') }}" id="email-form" name="emailform" data-name="Email Form">
          @csrf
         <div data-delay="4000" data-animation="cross" class="step-paginator w-slider" data-autoplay="false" data-easing="ease" data-hide-arrows="true" data-disable-swipe="true" data-autoplay-limit="0" data-nav-spacing="3" data-duration="200" data-infinite="false">
            <div class="mask w-slider-mask">
            
            
               <div class="step w-slide">
                  <div class="collaborate-form-step">
                     <div class="div-block">
                        <div class="pro-bar">
                           <div class="progress">
                              <div class="text-block-6">8%</div>
                           </div>
                        </div>
                     </div>
                     
                     <div class="form-content">
                        <div data-ix="show-content-onslide" class="form-section-title"><span class="text-span">Question 1</span><br>Lesquelles des activités suivantes serais-tu prêt à pratiquer si tu en avais l’occasion ? <br> <span style = "font-style: italic!important;">(Trois choix possibles)</span></div>
                        <div data-ix="show-content-onslide" class="form-title-line"></div>
                        
                        <div data-ix="show-content-onslide" class="form-row w-row">
                           <div class="col w-col w-col-6 w-col-stack">
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Design-2" name="question1" value = "Le ndochi babouche" data-name="UI Design 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Design-2" class="checkbox-label w-form-label" >Le ndochi babouche</span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Design-2" name="question1" value = "Le tir à la corde" data-name="UI Design 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Design-2" class="checkbox-label w-form-label" value = "Le tir à la corde">Le tir à la corde </span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Development-2" name="question1" value = "Le jambo" data-name="UI Development 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Development-2" class="checkbox-label w-form-label" >Le jambo </span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                           </div>
                           <div class="col w-col w-col-6 w-col-stack">
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Development-2" name="question1" value = "La danse" data-name="UI Development 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Development-2" class="checkbox-label w-form-label" >La danse </span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Development-2" name="question1" value = "Le jeu de la brouette" data-name="UI Development 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Development-2" class="checkbox-label w-form-label" >Le jeu de la brouette </span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Development-2" name="question1" value = "Le jeu de poursuite" data-name="UI Development 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Development-2" class="checkbox-label w-form-label" >Le jeu de poursuite  </span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                           </div>
        
                        </div>
                     </div>
                  </div>
               </div>
               
               <div class="step w-slide">
                  <div class="collaborate-form-step">
                     <div class="div-block">
                        <div class="pro-bar">
                           <div class="progress _2">
                              <div class="text-block-6">16%</div>
                           </div>
                        </div>
                     </div>
                     <div class="form-content2">
                        <div data-ix="show-content-onslide" class="form-section-title"><span class="text-span">Question 2</span><br>Comment tu manges le poisson braisé ? <br> <span style = "font-style: italic!important;">(Choix unique)</span></div>
                        <div data-ix="show-content-onslide" class="form-title-line"></div>
                        <div data-ix="show-content-onslide" class="form-row w-row">
                           <div class="col w-col w-col-6 w-col-stack">
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="UI-Design-2" name="question2" value = "Avec les doigts" data-name="UI Design 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="UI-Design-2" class="checkbox-label w-form-label">Avec les doigts</span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                           </div>
                           <div class="col w-col w-col-6 w-col-stack">
                              <label class="w-checkbox checkbox-wrapper">
                                 <input type="checkbox" id="General-2" name="question2" value = "Avec des couverts" data-name="General 2" data-ix="checkbox-ticker" class="w-checkbox-input checkbox-ticker"><span for="General-2" class="checkbox-label w-form-label">Avec des couverts </span>
                                 <div class="checkbox-active-overlay"></div>
                              </label>
                           </div>
                        </div>
                     </div>
                  </div>
               </div>
</form>

My Controller

<?php

namespace AppHttpControllers;


use IlluminateHttpRequest;

use AppModelsAuthenticite;

class AuthenticiteController extends Controller
{
    public function Authenticite(){


        return view('authenticite.index');
            
    }
    
    
    public function Store(Request $request){
    
    
    $validatedData = $request->validate([
            'nom' => 'required',
            'prenom' => 'required',
            'telephone' => 'required',
            'email' => 'required',
    ]);
        
        
    if(empty($request->session()->get('authenticite'))){
        
            $authenticite = new Authenticite();
            $authenticite->fill($validatedData);
            $request->session()->put('authenticite', $authenticite);
            
        }else{
            
            $authenticite = $request->session()->get('authenticite');
            $authenticite->fill($validatedData);
            $request->session()->put('authenticite', $authenticite);
        }
        
        
        return redirect('/questions');
    
    }
        
    public function Questions(){
            
        return view('authenticite.questions');
    }
    
    
    public function QuestionsStore(Request $request){
        
        $authenticite = $request->session()->get('authenticite');
        
        $validatedData = $request->validate([
            
            'question1' => 'nullable',
            'question2' => 'nullable',
            'question3' => 'nullable',
            'question4' => 'nullable',
            'question5' => 'nullable',
            'question6' => 'nullable',
            'question7' => 'nullable',
            'question8' => 'nullable',
            'question9' => 'nullable',
            'question10' => 'nullable',
            'question11' => 'nullable',
            'question12' => 'nullable',
            'question13' => 'nullable',
            'question14' => 'nullable',
            'question15' => 'nullable',
    ]);
        
    if(empty($request->session()->get('authenticite'))){
        
            $authenticite = new Authenticite();
            $authenticite->fill($validatedData);
            $request->session()->put('authenticite', $authenticite);
            
        }else{
            
            $authenticite = $request->session()->get('authenticite');
            $authenticite->fill($validatedData);
            $request->session()->put('authenticite', $authenticite);
        }
        
        
        $authenticite = $request->session()->get('authenticite');
        
        $authenticite->save();
        
        return redirect('/success');
        
    }
    
    public function Success(){
        
        return view('authenticite.success');
    }

}

Mes routes

Route::get('/test', [AuthenticiteController::class, 'Authenticite'])->name('test');
Route::post('/test/store', [AuthenticiteController::class, 'Store'])->name('test.store');

Route::get('/questions', [AuthenticiteController::class, 'Questions'])->name('questions');
Route::post('/questions/store', [AuthenticiteController::class, 'QuestionsStore'])->name('questions.store');

Plz i need help