How do you cope with self harm?

I've been depressed for several years now but only a few weeks ago I've started harming myself everytime anxiety or depression kicks in. I cut myself 3 to 6 or 7 times in a row and it's becoming the only thing that calms me down, however I know that this can result in some kind of addiction in order to feel better and I really don't wanna end up in that situation.

I am aware that I am damaging my body, but somehow is the only thing that makes me feel better. Do you guys have any advice on what to do when the urge to harm myself just won't leave my head?