Don’t worry about what some girls are thinking. I know it’s easier said than done and you’re a pretty submissive guy so it’s even scarier for you, but these girls will actually help you reach your goal to be more confident and sure of yourself. Every time you show up and be part of the class, you are working out your “being brave” muscles. It doesn’t feel like it, and you probably feel lots of anxiety but you don’t need people to like you, you just have to stay with yourself and keep going.