wow. that's awesome! I wish I had something constructive to say... Her pain is just being channeled in different ways than yours was... I think the important thing to remember is that she is doing it to help her through something... both can be like addictions... they are difficult to stop and cravings can come back...
a good source of info online is selfijury.org... there are others, but I can't think of them off the top of my head.
Good luck. I'm sure others will be of more help.