Welcome back George. Your story is a familiar one, most of have been there at one point or another. You are still alive, you have a place to live and a definite chance to make serious change your life....alcohol will most likely take all that away from you too if you keep drinking.
Alcohol is also a depressant, so if you have depression it only makes it worse. Kind of like a diabetic eating pure sugar somehow hoping it might help.
How about hitting a meeting of calling a doctor to get your depression checked our and detox safely?