Congrats on making the decision to take a good honest look at your drinking habit/crutch. Good on you! I wish I had the insight I feel I have now to have looked at what I was doing and how I was depending on alcohol for well...almost everything..in the end. In my 20's I was about a once a week binger (and often to blackout). By my 30's (after a break up) wine became my new best friend..each and everyday (unless hungover). I just had no idea what I was doing. You sound like a smart cookie...much smarter than I was at your age.
Good luck on your decision to knock it off awhile. I don't know if you are open to suggestions but I would suggest a good period of abstinence in order to face things head on..without your crutch. I am of the opinion that taking alcohol completely out of the equation for a while is the best route to build your emotional muscle and resilience.