I'd look at getting your OCD treated properly. It's like trying to fight with your hands tied behind your back to deal with giving up while the OCD is untreated. There are some good counselling services around also that can help. Working through the attitudes & problems that lead to your drinking is a must. AA's spiritual outlook can be anoying ( I find it a problem to ) but other than that it does have much helpful pointers to keeping yourself sober. So realisticly I'd say find a Psych to treat your OCD & depression, a terapist to work through your problems & hang in there. It took time to get as messed as you are & it'll take time to disentangel from the mess.