I'm sorry you had a rough night, Augustine. I'm not an alcoholic, but I have dealt with depression in my day. I don't know how long you have been sober, but it may be early days yet for the full affects of your drinking to leave your nervous system.
When I went through my two bouts of depression, I saw my doctor. He prescribed short courses of mild-antidepressants for me that helped. But I think what helped the most, and what still makes me feel better today if I'm feeling blue is to reach out to others.
Have you tried the chat room here? I can't get into it because I don't have the correct version of some software or another, but there is almost always someone around here to talk! SR is a great resource!!