I firmly believe alcohol contributes to/causes anxiety and depression far more than it genuinely helps. Alcohol is not a good solution to lifetime anxiety.
Yep I have always been anxious and still can suffer with Anxiety. But my problems have been immeasurably better since I quit drinking.
I would genuinely suggest getting help with your alcohol problem...strongly consider quitting entirely with assistance of needed ... then you can find out for sure how much booze is contributing.
There is not much health professionals can do (talking therapies or medication) while you are still drinking heavily.
P