Help scrapping skin from under nails

I'm addicted to scarping the skin from under my nails. Its like a drug. I love to do it I know it hurts but I dont feel it. Howdo I stop. When new peices of skin grows I scarp it out. Please help Ive done this s can since Ican remember. I started when my mom was working on sound stuff for the church. I would get board. and scarp