This is great news you have to share, Pigtails, that you are doing so very very well. I think we all understand your YIPPEEEE feeling, there are only one or two events in my life that have ever made me feel like that.
That nagging doubt and fear that you could possibly fail is your addiction whining. Things are looking pretty grim for it now since those old lies are just not doing the trick any longer. This will definitely be the best family do for you ever for the simple reason that you will be present, not drunk, or wanting to get drunk, or worried about being drunk. You will be you, no booze, just you.
There is only one person who can take any credit for changing your life, you might know her, she wears her hair kinda funny. Best to you!