This sounds like my eldest. I didn't see this when she was growing up, she did have trouble with school, always wanted to be home. Looking back at it, I wish I had taken her somewhere, but didn't see it then. That is frustrating, too. It is all frustrating. Maddening and not fair. I am with you there.
There is still help and hope for our d cs, no matter what. People find ways to turn their lives around.