Welcome! I'm glad you're ready to do this!
My suggestion would be that it's important to remember that stopping drinking is the beginning. For many of us, we need to make lifestyle changes in order to remain sober. You might make up a plan for yourself so that you have something planned during the times when you would have been drinking. You might need to step away from some friends/family, at least for awhile, until you feel confident in your recovery. And, any kind of exercise is bound to help.
I'm glad that you have found us and posted here.