When you "allow [yourself] to get drunk," are you really looking for a way to completely shut down? Relax? Escape? You'll find not drinking easier, I think, if you can replace it with some other activity that to some degree serves the purpose that getting wasted did.
Instead of staying up last drinking after the show Friday night, I'd get up early and a bunch of us volunteers would muck out the stalls at the humane society therapy horse center. Hard work, but we talked, worked the horses, drank gallons of homemade ginger ale and root beer--then I generally passed out till show time that night.
Good luck. It's not easy ... but worth the battle!