Newsletter sign-up form with success message solution

What are you most proud of, and what would you do differently next time?

I'm proud to have managed to finish the project.

What challenges did you encounter, and how did you overcome them?

The challenge of validating the email field using native HTML5 validation and displaying error messages using the validationMessage property.

What specific areas of your project would you like help with?

I would like to know if the logic I used was good or if I could do it in a simpler way. Any suggestions for improvements will help me do better next time.