Thinking is good! But you need to balance thinking with action. Too much of either always get people in trouble. And when you commit to action, thinking afterwards becomes reflection. I think what you are doing now is just reflecting on your being an alcoholic..which I'm sure you've already done a million times before-- and it hasn't worked.
Meetings, I'm sure, are a good form of action. It exposes you to new ideas and gives you a new angle with which to attack the problems in your life.
Keep trying. You'll never quit if you don't keep trying.
Good luck and keep posting!