Do you have an adult in the school you have a good relationship with, like a guidance counsellor or other teacher? You could try sharing your concerns with them to have them help you. When you defend yourself, are you doing it in front of the class or one-on-one? I would try to privately share your concerns with your teacher; rather than saying what that teacher is doing, explain your own feelings when you are in the classroom. If this doesn’t work, you should involve administration so this doesn’t happen any longer.
Good luck.
Teaching In Real Life 