Hi J. A,
First of all, grats to you for rising above the drama. You're on your way to a happier life already. Most ppl don't have your courage until much later in life. Nevertheless, you want to be happy in the moment, and you're reality now is 2 more years of high school. Two years must seem like an eternity. You've received many good ideas from other posters, and hopefully at least one of them will appeal to/work for you. Only you know, in your heart, the best path to take. You should know, however, that it will get better.
J. giving you another "similar" story (I know you are unique, but trying to encourage you): I have a friend in her 2nd year of university who went to a h.s. that was full of drama (maybe they all are). Think affluent like our area's Highland Park HS crossed with a private, but with the feel of "Mean Girls" (rumor had it "Mean Girls" was based on her school). She had no "real" friends, the girls she hung out with treated her badly, the boys didn't find her particularly interesting (not saying this is your issue, of course)..... She's quite happy at school now. Yes, there's still drama with roomies at times, but ya J. get a new roomie and move on! The guys on campus have given her tons of atention (she has a steady b.f. now), and she's met girls she enjoys hanging out with. She's happy. :) I can't tell you how miserable she was at 16. Well, you probably know....
I think you posted before about being in drill team. Maybe you'd enjoy taking dance class somewhere (somewhere with nice students, of course). Lots of studios have competitive teams (one of my college friends owns a studio that's very active in contests & conventions). If you have time, maybe it would be fun. Maybe even try a new form of dance.
So, hang in there. Follow your heart. I promise, J. A, there will be better days.
~K.