Hey, Rupert,
I go along with what the others have said. It's a little bit soon to be taking that kind of chance.
Incidentally, I think it's GREAT that you are dealing with your alcohol problem at your age. FWIW, my ex-husband got sober when he was 21 after coming to the same kinds of conclusions you have. He's now got 30 years sober, goes and does what he wants, where he wants, has a great time, just doesn't drink.
You'll get there, you sound like you have a lot of good sense.