"Codependent No More" is the best recovery book I ever read. People told me to read it for a long long time...and I didn't. One day I knocked over a display of this book in a book store and felt compelled to at least buy a copy after making such a mess...I am certain God put that display in my way for exactly that purpose, lol.
Read it and then try a meeting or two. You have nothing to lose and everything to gain.
I pray that he follows through on his good intentions. And I will keep you and your daughter in my prayers too, you've got a load to handle by yourself, but you are strong and brave and will do just fine, I promise.