If you hate the class, then don't go. I am curious about what they are teaching you that upsets you so much. Could you elaborate please?
I have sewed all my life, well, since I was about 6 years old. First just with needle & thread, and then at 10, I was allowed to use the sewing machine. I made my first 3 quilts without a pattern. Even though I didn't need quilting classes, I have signed up for several and in each one, I have learned new techniques and sometimes, better or quicker ways to do some common quilting tasks. I can't imagine anyone dreading going to the classes. They have all been fun and I have made new friends each time. But if you hate it, then don't do it. Maybe now is just not the right time.