If you don't like the class, ask for a refund and quit. Life is too short to spend time doing something you don't like. Another suggestion is to just sit and observe. Take notes on anything you want to remember. Take something to read if you get bored. It's not like you are getting a grade on the class. Tell the instructor how you feel. Maybe everybody else feels the same way you feel. I would never allow someone to make me feel bad about the way I do things. Good teachers are encouraging, not critical. Think it over and handle this situation in a way that makes you feel good.