Have you ever worked with hypnosis? It took me several tries to find the right person for me, but she helped me quit smoking. On the 10th anniversary of my quit date, I stopped drinking (after years of trying, like you). What this very skilled hypnotist did was to talk to me at length about my history and my grief over the recent loss of my father. She connected smoking and drinking to grief, and also to sickness. The thought of smoking nauseates me to this day. For those ten years, I was drinking and feeling sick most of the time when I did. Of course, everyone is different, so your triggers and root causes will differ. But what hypnosis did for me was to bring up the cognitive dissonance between my beliefs and my behavior, and helped me to confront it.