You could go to Al-Anon (or Ala-Teen, depending on your age!).
The meetings are for friends and family of alcoholics, and I've found them very helpful.
My alcoholic is my husband. I wanted to help him more than anything else in the world. But trying to help, making myself available, listening to his rants, changing my daily routine in hopes that it would help him, was driving me CRAZY.
People can recover from alcoholism. It happens everyday. I've FINALLY figured out that I play very little (if any) role in helping an alcoholic find recovery. They find it when they're ready - but it sucks to watch them self-destruct in the meantime.
I had to move out. I can't give my husband recovery, and I can't watch him hurt himself. It hurts me too much.
Hugs to you today.
-TC