Everyone has a different way of dealing with a strong AV. Keep in mind it's strong because you fed it for so long.
Give strength to your inner voice and allow it to speak. Some tactics that really do work:
Imagine yourself as a mediator between your AV and your REAL inner voice. Your AV is being a total jerk and and crybaby. It's not giving your true inner voice a chance to speak.
Tell them both that you will give each a chance to express their opinions and that you'll write them down. Grab a pen and paper. Then say "ok AV, since you have no patience, concern for others, and act like a cry baby when you don't get your way, I'm going to let you go first".
Ask your AV to tell you all the reasons you should be a drunk. As many as it possibly can. Let it talk itself out. When its done, ask it "are you sure? that's it?" Force it to come up with one more reason.
Ask your inner voice to tell you all the reasons you want to live a sober life. (Not should, not need to, not have to, but WANT TO). As many as it possibly can. No reason is too small. Everything. When done, ask it "are you sure that's it?" Force it to come up with a few more reasons.
Now...as the mediator, review each list. Which one is riddled with lies and deceit? Which won has some short term benefits and which one has long term benefits. Which one seems more concerned about YOU and YOUR wellbeing? which one is RIGHT and which one is wrong?