Okay my sister is 14. She barely began doing this. She told me she does it because of her ex bf. She broke up with him but he got a new gf so fast she went into depression. We never noticed until she started to cut herself. I don't know how to help her. She told me they could replace me so fast everybody is better without me. I'm 20 and I have a lot going on but I need to help her and I don't know how to do it. My dad and mom know we are all trying to help but we don't know how. What do we do?