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See a dermatologist. See a therapist. Join online support groups. Learn to crochet, knit, do needlepoint, or anything that involves using both of your hands. I learned to crochet by watching YouTube videos. Throw away your tools (tweezers, safety pins, etc.). Don't use a magnifying mirror. Get thick acrylic nails put on. It is almost impossible to pick with acrylic nails. Keep a journal. Smile and love yourself.