I used to do the "small" OD just to make me feel bad, it wasn't related to sui, just pure SI with zero scars. Didn't do it often though (several times a year). I'm over it now. So yeah, it is possible to get over it. Talk therapy. Then some art therapy. And some more talk therapy. You could try it, for some strange reason I don't think I will ever understand, therapy works. You just need a really brave and calm T to be able to talk about this type of SI without the T freaking out. You can PM me if you want.