I've been struggling with dermatillomania ever since I was a little kid. My focus has always been on the tips of my fingers. I pick at them almost constantly and sometimes it's not even a conscious effort, I'm just so used to doing it. It's always been a source of shame for me too and my mother likes to point it out... a lot...as some way of embarrassing me to stop. I really wish I knew how to stop myself, but at the same time I don't really want to. As weird and effed up as it sounds, I find it to be a source of comfort especially when I'm super stressed. It's like there's something grounding about it...like I feel that I can control my anxiety better if I just focus on peeling to the point where the skin is tender but not drawing blood. It's weirdly gratifying when I do this. The only time I ever stopped was when I got a manicure...and believe me, I still tried to pick even though I had pretty acrylics that made it almost impossible. That lasted for about a week until the acrylics started falling off and I was right back to it.
Btw, have you been to this website? You can take a short test about your behaviors and they'll get back to you on whether or not your displaying dermatillomania or not:
http://ocdla.com/dermatillomania-com...n-picking-test