We aren't talking about a child here, but a grown woman...It's been reported that her parent have tried to help her in the past, but after a point where it pertains to addicts and anything else in life....you have to want to do better for yourself! And until Amanda, wants better, she's going to be stuck in the same mess that she's gotten herself in.
I think this is way beyond addiction. She might be self medicating with drugs but it appears she is suffering from a mental illness and/or having a breakdown. If that is the case she may not be able to want to get better...