Hi David,
You totally surrendered and admitted you were powerless.(step 1) It's a great relief and you've also had a lot of relief by confessing to those you have kept the burden of a secret from.
Enjoy this ....but it will not last until you take action to prevent you from going back to drink when the problems as to why you started in the first place become evident again. The rest of the steps will deal with this.
Have you been back to that AA meeting?