The easiest way to stop an addiction is to replace it with another one. When I stopped cutting before my recent relapse I replaced it with eating. Instead of feeling like you're not doing something right, try to channel that need somewhere positive. You need to find a healthy release for your emotions. For some people that is exercise or a sport, for others it's writing or painting, for others it's just talking out loud or validating themselves. Some people do well in support groups and other do well on their own. I'm still working on finding my replacement but I just wanted to let you know, you're not alone in replacing SI with something else.