A good friend of mine just got back from "rehab" for alcohol abuse and anxiety related problems. The course was 3 weeks long and a residential scheme.
Although his problems are still there, he found the whole experience rejuvenating and has come out the other side with a smile on his face.
I wish you the same.
I suffer from depression and used to be addicted to medication. It took me a few months to break the medication cycle and now I am out the other side and have learnt to live using nature's herbs instead and a (relatively) healthy diet.
I'm sure if you wrestle and find a focus you will pull through.
Regards
Simon