Not OP, and kind of cliché (with the common corollaly to seek professional advice instead of internet wisdom), but:

excercise - and for me it was more anxiety+smoking but less anxiety led to less drinking too(which I did not recognize as a problem at the time)

I consciously used it as a replacement: when I was stressed and need of a cigarette, I told myself that I actually feel the miss of a good run - and for me running really helped somewhat, so it was enough to start a positive feedback loop. It is also good that both drinking and smoking makes excercising harder, which I tried to (and many times could) use as a fact against them ("if i now drink i wont be able to wake up early enough to go for a run", "if i smoke it will much harder to breath")

And another internet wisdom cliché ;) regarding anxiety: stop drinking coffee (tea...)...