How to show one password validation message at a time, if their are multiple ones in Angular?

Followed below pattern for Validating Input Fields :.

1. At least 6-15 Characters long
2. At least 1 Lowercase Characters (a-z)
3. At least 1 Uppercase Characters (A-Z)
4. At least 1 Digits (0-9)
5. At least 1 Special Characters (*$@#)

So, Basically I want to show only one validation message at a time