A Decade of Dermatillomania

As title says, I really want to get help with this. I was doing pretty good for a couple months pretty low skin picking and today I just zoned out and went ham on my face. I’ve noticed I do this when I am anxious and stressed(big picking sessions) rather than daily life not noticing I’m picking my back or chin. It stings, it hurts, I’m ashamed. I’ve gotten to the point where I’ve stopped covering it up because raw skin cannot be covered. I wish it was anywhere else but my face. I don’t even have a mask to help with the redness and I know these marks will last a while. There’s gotta be some book on this that has some solutions or help. It’s not like I can roll up to a therapist and expect them to specialize in this disorder. It’s taken a lot of time away from my life, the picking for hours, the picking in public not noticing it and getting embarrassed. The scars. The hiding away from people, not being social, not shopping for groceries in fear of comments. The complete shutdown, once I have a big picking session like that I get ashamed then I usually continue to my back and I’m 4 or 5 hours deep. It fucks up with my spinal structure and chronic pain. I have a problem and i want help. I don’t know where to start. I want to get to the root of why, has anyone been able to stop completely?