What is the appeal in cutting yourself?
It’s hard to understand it when you don’t do it yourself. Self-mutilation is like a silent form of communication – the person who does it often has trouble expressing their emotions, or they feel like it’s inappropriate to do so. Injuring themselves – in your sister’s case, cutting – is like releasing those pent-up emotions that she can’t deal with anymore. Other reasons people do it involve a lot of self-hatred – often people who self-injure are depressed, have borderline personality disorder, or have an eating disorder. All three of those illnesses will cause the person to intensely hate themselves, and self-injury is seen as a way of “punishing” themselves. I suggest you and your sister talk to a trusted adult to get help with your life at the moment. You seem like you’re dealing with something as well, and your sister especially needs help because she could accidentally sever a vein. You can talk to a school counselor, a teacher you really trust, a religious official you trust, or