I had also made a big plan (without knowing it) and did not drink for 10 years. I was very happy during that time and even though I was fairly young, married a drinker, and had drinking friends, I never missed it at all. Now I recognize all the justifying, rationalizing, etc about deciding to drink again was simply beast activity. Unfortunately that reversal of intent was a seven year bender. Again, I quit in an AVRTish way without knowing it and it's been a few years now. Learning about this after applying it has been interesting.
Now I know more. Knowledge is power. There won't be another reversal.
I'm not going to say I haven't learned alot from other programs, groups, even treatment. But the things I've learned are more about living life well, not quitting the booze. For quitting the booze, what works the best is...well, quitting the booze.