I feel your pain! Well, I think I do. I am cautious to say that now because I am not in your shoes. My addict is my 20 yr old son. I knew he was using this or that since age 16. I found out about his heroin use about at age 18. We went thru 2 yrs of outpatient therapy off and on, all the while hiding it from my family and my younger daughter got a front row seat to his addiction.
Long story and I won't bore you with the details, but he finally got clean in January. Inpatient treatment was the only way for him. He no longer lives here with me and me and my daughter are repairing our relationship. I do see him once a week, he lives in a half way house. I am learning the hundreds of ways I enabled him. And I thought I had one of those kids who would tell me anything. He told me a lot, but that was only the half of it.
This forum is amazing in providing support. I am glad you found it, and hope you continue to post.
Much love