First, congrats on your sober time! I was a daily drunk for 10 years and a weekly binger for the 20 years before that. I found out that not drinking was the easy part, the hard part has been figuring out WHY I drank in the first place. I think that's why so many do fail, they never get to the root cause. I figured that I put so much work into getting drunk, that I'd better work at staying sober. That was almost one year ago and today I am free of any thoughts of drinking. I did it without any formal program, but I realize that's not for everybody. From what I've heard and read from others, if you truly work at the program of your choice, you'll have a much better chance of success.
I'm living proof that it's never too late to change. I do wish you well.