Distinguish between the thought of: I want/ need a drink
Versus the thought of:
I don't want to feel this feeling.... or
I don't know how else to cope with this...
Or I want to relax and don't know how else to do it....
or whatever underlies the drinking thought.
Then try and address more rationally the underlying thought:
This feeling is uncomfortable but it will pass...
I can cope with this in other ways such as: _____ or
Other ways I can decrease anxiety are: ______ and so on.
Retrain yourself.