I can only speculate as I am in the very early days right now, though I had close to a year a little while back.
There seems to be a debate about whether just quitting drinking is enough for those of us who have used alcohol as a crutch or a 'friend' or to ease our way through life. 'Recovery' seems to mean, for many people, a journey about learning new ways of dealing with those issues without alcohol. AA is about that. So is SMART from what I have seen. I do know there is a counter argument that alcoholism/addiction is simply about that - addiction, but I'm inclined to go with the first view.
So perhaps that is what is missing for you. You have quit but you are perhaps still the same 'you' as you were before. And perhaps you need to look at your underlying anxiety issues and find a way of addressing them.
I can't offer the wisdom of experience, so I'm just speculating. Hope it helps.