Solution to the "Contact Form" challenge

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

I had already done this exercise to test my skills with forms. However, I hadn't done the scripting part, as I hadn't started studying Javascript yet. And now I'm resending this challenge because I did the script part. It was great to do this challenge to practice my javascript skills. Next time I'll try not to use so many 'if' and 'else', it ended up getting so tiring to do lots of ifs and elses.

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

I accept any kind of help or advice, from how to make the code cleaner and simpler, to how to make the code more complete.