I pretty much quit with the help of an addiction specialist. He tried to get me to go to AA but it never really appealed to me and he said I seemed to be managing fine without it so he stopped pushing.
The therapy helped me A LOT. I still go, to a different therapist now and not just for addiction, but it's maybe been one of the best things I've ever done for myself.
Good luck, I hope it works out for you.
One thing- I saw 5 different people over the years before I finally found someone who was a good fit. Then she said she didn't think I needed her help any more but I didn't believe her so I found a psychiatrist (long story but he works in the same office as a psychiatrist that was originally recommended to me by my primary physician) who is extremely helpful. The point is, if you don't like the first person you meet with, don't quit. It can take some time to find the right person.