I have been self harming for years and am just now trying to recover from it. Majority of my friends self harm as well as half of my family. It is a very addictive and unhealthy coping skill and I do not suggest doing it. It can take years to stop and it only helps for a few moments. If you are having a difficulty with coping, try staying around people, keeping silly putty or clay in our hands, running, coloring, listening to music. Those are all healthy coping skills. And there are so many others. Anything you like doing can be a coping skill. Just make sure you aren't burying your feelings in the process