Hey this is tough I know this is hard to deal with. If you need to talk I am here, but also maybe you should try putting a rubber band on your wrist and every time you get the urge to cut you flick the rubberband this creates an effect that works for some people but not all. Family relationships can be hard sometimes I understand that and remember it will get better maybe not today or tomorrow but in the long run everything will work out.
You can
PM/
VM or email me if you want to talk
Jake