>>3679 (OP)
Don't do it. No good can come of it and you know it; it'd just be another form of pleasure, and worst case scenario you'd just be left with another kind of unproductive addiction.
I mostly think the point of not fapping is more getting the addiction off, rather than replacing it with some other form of addiction, be it a 'good' or a 'bad' kind of addiction; the point is breaking habit; having control; killing urge, and living as you consciously want to live. Some people don't think like this though, some people think you should replace the bad habits with good habits; their views are centred around simply getting better.
Point is ultimately to become better, and, of course, 'better' is subjective, so I must ask, do you think you'd be better being addicted to cutting and generally harming yourself, something you clearly stated you don't like?