Oh Coco I'm so sorry, it is so frightening to know your daughter is struggling this severely. Does she have a T? Both my teens did that too. Luckily I haven't noticed anything recently. I will ask my oldest, almost 19 if she's still doing it (she was depressed yesterday but we didnt have a private time alone long enough to discuss in depth). She may have advice for a young girl at 15. That seemed to be the age where we had the roughest time with both my teens. Sending prayers and love your way.