Al-anon
I have been a regular in Al-anon for about 7 years. When I first attended I felt I shouldn't mention my son's drug use - he was a teen and not really drinking then. Some in alanon seemed to feel it was for families and friends of alcoholics only. So, I just didn't emphasize the drug use.
As time passed I learned that many in the program do feel it is for any addiction and I found a terrific meeting for parents.
Then, of course, my son started drinking anyway. Most of us in the program feel like we can all qualify one way or the other and I've been to meetings where they openly mention that the group considers that it is for families and friends of acoholics and addicts.
So, try different groups if you don't feel as accepted one place or another. It has saved my life over and over and over again.