I think I should just start acting like a bitch with my teacher
Why would you act that way?
Not to them, but behind their back... you don't know how much it hurt me when she failed me
I know how it feels to fail something or to get a bad grade, but you should not retaliate nor be angry at your teacher especially if that grade is justified. I would recommend that you talk with her to see if possibly you can redo your assignment or your test to get a better grade, but acting out or being disrespectful is the worst way you can possibly act in this situation.
I will do that. It kills me when I feel like someone does not give me a fair shot.
It's good to hear you will talk to your teacher about raising your grade. You have a better chance at getting what you want this way.