Kay,
Next time you feel the urge I want you to try something. Make believe there is no such thing as alcohol. No pills or drugs. And no insanity.
Force yourself to find other ways to cope. It will be rough at first, til you get the hang of it.
This little trick has bought me nearly 25 years of sobriety and I've never shared it with anyone. Try it. It's called Lateral thinking.
I know it sounds strange but try it. I've been locked behind 3 doors too.