Intro Component with Signup Form solution (SASS, BEM, VanillaJS)

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

• This is my first project officially incorporating BEM into my solution (I am currently self-learning this, so feedbacks are highly appreciated!)
• I provided feedback for the user when all input boxes are successfully filled
• I added a little 'functionality' to the 'free trial' button above the form

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

I am yet to refactor my JS code. I think I can make it more 'DRY'.