I wish I had some wonderful words of wisdom for you, but I don't. I've been in your situation before and it is almost unbearable -- almost being the operative word.
What I did
1) Prepared the best lessons I could, knowing I would be held accountable.
2) I rarely left my room. Although as the year progressed, I did find allies.
3) I tried my very best to stay in the building only as long as I had to. It was too depressing a place to spend any extra time there.
4) After Christmas, I applied to every school district and private school in the area. I had a new job by March and that made last quarter much more bearable.
The really funny thing was that one of the most hateful students I ever taught approached me on the street the next year. "Mrs. Griffin, Why did you leave us. I learned more in your class!" Go figure. He made my life miserable!