Lilly,
You and your family are in my thoughts. I just want to say that I hope you do realize just how important you are, and that taking care of yourself is the best thing you can do.
I am glad that you are going to Al-Anon; you need the support to stay strong. You did the right thing by having your son leave your home...see, your higher power is showing that to you right now. Your son went far enough to be getting the help he needs, and I pray he will embrace recovery.
Take good care of you.