My carousel rotates when the page loads, but then stops completely

Im creating a full-stack application and for my hero page, im working on adding a carousel that rotates images in the background. So far I created the HTML file, CSS file, and the JavaScript file. When the page loads, it will rotate but then the carousel will stop working and just stay on the first line. Not too sure if there is an error on my code but I would appreciate it if someone helped me out! Thanks

var slides = document.querySelectorAll('.slide');
var currentSlide = 0;

function changeSlide() {
  for (var i = 0; i < slides.length; i++) {
    slides[i].style.opacity = 0;
  }

  currentSlide = (currentSlide + 1) % slides.length;
  slides[currentSlide].style.opacity = 1;
}

setInterval(changeSlide, 3000);

*{
    margin: 0%;
    padding: 0%;
}
/*------------------------------Hero Page---------------------------------*/
.carousel {
    width: 100%;
    height: 700px;
    position: relative;
    overflow: hidden;
  }
  
  .slide {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
    opacity: 0;
    transition: opacity 1s ease-in-out;
  }
  
  .slide:first-child {
    opacity: 1;
  }
  
  .slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: white;
  }
  .slide-1 {
    background-image: url(Images/derek-baumgartner-A7sfB4yKS7s-unsplash.jpg);
  }
  
  .slide-2 {
    background-image: url(Images/andrew-bain-jO_Q3EY_T0E-unsplash.jpg);
  }
  
  .slide-3 {
    background-image: url(Images/aaron-dowd-N7PDwky8doM-unsplash.jpg);
  }

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <!-- Bootstrap CSS -->
     <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
     <link rel="stylesheet" href="practice.css">
    <title>Welcome to Washington State - Home Page</title>
</head>
<body>
    <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-w76AqPfDkMBDXo30jS1Sgez6pr3x5MlQ1ZAGC+nuZB+EYdgRZgiwxhTBTkF7CXvN" crossorigin="anonymous"></script> 
    <!------------Hero Page-------------->
    <header>
        <div class="carousel">
            <div class="slide slide-1">
              <div class="slide-content">Slide 1</div>
            </div>
            <div class="slide slide-2">
              <div class="slide-content">Slide 2</div>
            </div>
            <div class="slide slide-3">
              <div class="slide-content">Slide 3</div>
            </div>
        </div>
    </header>
</body>