Being in a very much semi transitional state (I've told everyone that matters, everyone has seen me as a girl, but yet to change my name and take the full time plunge) I have given serious thought to not transitioning and drinking myself to death instead, I nearly succeeded in this in my twenties (not drank at all for more than eight years though) and to be honest, it was a lot easier than all of this because no-one expected anything of me, particularly not myself, with everything that comes with transition, I have to admit that it's tempting.
However, when I'm not so scared/depressed I know that transition is the only chance of a happy future, the alternative would not be pretty and there is no delusion of a happy life as a guy, for the simple reason that I'm not a guy! As people have said in this thread, the genie is out of the box and now I have accepted who I am the thought of trying to slink back into denial seems ridiculous.