My teacher thinks I'm too ambitious/ a prick. Advice?!!!?

Based upon the information you gave, it's obvious why there's a problem with your class principal. She's absolutely jealous of your intellect. And your lack of fear to speak out in class. You probably know as much about things as she does and that is a thorn in her side. I believe that she knows that she has gone as far as she can go with you (education-wise). Your best course of action is to find a way of getting on her good side. If you could do that, it would "shift the balance of knowledge back to her side of the classroom. And that's just what she needs. You probably don't like the idea but you must remember that a person in that position can do you more harm than good, if she has a mind to. Good Luck.