Can I sue my HS for kicking me out of a class for no reason?

I am a high school student; I was the first student in my school to sign up for AP Chem next year and I have an A+ this year in Chem H, yet my school will not let me take AP Chem because the class is filled. The people who could take the class were determined by randomness (not by first-come first-serve and not by grades, which are both much more just). This is extremely unfair; I'm wondering if I can sue the school for this injustice. If not, what should I do about this?