FEET: Anyone using clippers to nip at small blisters, and continuing to pick all over?

Let me say first, that I'm so relieved that this is not just a disgusting quirk of mine, and there are others! (I should add a bit of background, I'm a 23 year old Male, and I've struggled with depression for years, just this year got it under control. I'm happier than I've ever been, but no change in this habit. In fact, I cannot find a pattern anywhere as to my mental state and this habit. just something I've always done, and it comes and goes.) I've been doing this, or similar things since I can remember. (Probably around my early teens when I had severe ingrown toenails.) Basically, my feet sweat really bad, and after taking my shoes off, I have tiny blisters in different areas on my feet. I take my clippers and nip at them to let the fluid out, but then I have a snag of skin left. So I clip that off, and continue until I feel like it's smooth all around. I do this, say 30-50 places all over my feet. I do it so badly in many places that I go past the tough layer of foot skin, and into the meat. I draw blood, and then move on. It's not my goal to do that, but it's oddly satisfying.I guess I feel like I'm making my feet look better, or removing dead skin as a necessity, but I'm figuring out that this is some subconscious justification. Other times, I take my clippers and nip at the tough skin on the ball of my big toes, then I continue until I feel I have removed all the tough dead skin. I also do this all over my feet where there is tough skin. When I'm not focusing on it, say watching TV, or reading, I do it with my nails without noticing I'm doing it. I don't eat my clippings, but I think I might have when I was much younger. ( I do chew the tough skin around my fingernails, and that ends up in my mouth, but I spit most of it out.) Anyone who does eat theirs, DON'T feel guilty. It is gross, but we obviously have a disorder and it's not your fault. My reason for posting is to first, thank everyone for sharing their stories, and second, to find out if anyone has a story similar to mine. I haven't found anyone who has the problem nipping at the blisters as a gateway picking, so I'd love to find out. This habit of mine hasn't caused any problems in my life yet, but it's obviously not healthy, and it seems to be indicative of other underlying causes. Thanks to anyone who shares their stories with me! -William