That whole situation is such a tragic train wreck for your DN. The multiple tattoos and piercings are perhaps 1 way that she's coping with some difficult issues. For example, maybe she's wondering why she's alive at all. She basically doesn't have a real home to go to. Here she was facing death in its face while her parents focused in the stupid house. Now that she's in remission, she's clearly wandering and wondering what her purpose is supposed to be. And unfortunately, her idiot parents indulged her for her whole entire life, so she has no inner "center" inside of herself, if that makes sense. No foundation to fall back upon.