I don’t know how to quit

I’m 22 and have been picking my skin since I could remember. When I was a kid I would compulsively chew the inside of my cheek, then I switched to chewing the skin around my fingers. When I started puberty, acne caused a huge problem and since then I’m constantly picking my skin. When I try and fight one form of picking, i do the other. Any time I pass a mirror I pick at my face or back. If i’m driving I have to fight the urge to pull down my mirror and pick. I chew on my fingers, mouth, and lips without even realizing it. I constantly have open wounds on my fingers and skin and I just want to stop. I don’t even realize I’m doing it half the time.

Mostly a vent, but I know I need to stop but it’s so hard.