Responsive Contact Form with Html, Css and Javascript

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

I am mostly proud of my Javascript, mainly because I am still a beginner. Being able to implement the little knowledge I have into this project made me know I still have a long way to go. If I was given another chance to do this project, I would tell myself the journey is just starting and I shouldn't push myself too hard.

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

I had a problem. When I pressed the submit button, the error messages didn't work, so I had to go to Google and research the reason behind it. Google and stack overflow was a big lifesaver.

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

I am still learning and will always be a beginner. If I haven't done or written a particular code right. Would appreciate the feedback and comments so I could further improve myself.