Do you have health insurance? I do not have a problem with alcohol, so I am not 100% sure on this, but I THINK I remember that there is some sort of a pill that is available now that makes you ill if you drink while taking it.
It's not supposed to be a cure for alcoholism, but is supposed to be helpful if used in conjunction with other support (like A.A. and the DESIRE to quit).
So maybe you could look into that? I am sorry you don't have a support network you can count on, my best suggestion is to start by TRYING A.A. because even a little bit of help is better than none, at least to begin with.
You've got to start somewhere!
Good luck, and we'll all be pulling for you.