I think I have onychophagia, I thought I could stop this, please advise?

I think i have onychophagia (?). I’ve mostly stopped biting my nails on my hands. My problem is my toes, and that i’ve graduated to using tools. pocket knife, trimming scissors…

I’ve basically removed the nails from 7 toes. When it heals into a faux nail (hard skin), I rip that right off. I don’t disinfect or bandage or anything, I just put socks right over it and go to work. I don’t know how i haven’t got a major infection by now.

What do I need to do. It hurts, but that doesn’t stop me. I stopped on my hands, i thought i could stop this. I can’t.

Age:28
Male
Medications: None