That is unfortunate. At least you realize the cause and effect of the situation. What are you going to do about it next year? Why are you not working to your intellectual capacity?
If you do become a teacher, you realize you will be carrying out the role your teacher is doing with you? Trust me, your teacher probably finds no satisfaction in her actions. She is not the one as to why you are not in the Teacher Cadet class, though, you are.
What is a Teacher Cadet program?