I think I have Dermatotillomania too. I have not been diagnosed with it, but I meet the criteria... I pick on my face and sometimes chest and shoulders before bed almost every night. Recently, I have started picking on my scalp as well (mostly during the day). I hide the red spots and scabs on my face with makeup and I am ashamed to go out without it when my face is pretty bad. I think I pick on my skin more when I am stressed or anxious.
My mom hates it. From time to time, she notices how bad my face looks and makes remarks about how I should fix it...
The only thing that I have found to help with the picking is cutting my nails. I also use different skin care products to help my skin heal...
I had no idea Dermatotillomania was a thing until I came on this forum. I thought I was the only one with this weird obsession... It's great to know that I am not alone!