If you wanna break unwanted habits you have to break bad neural paths and force your body to develop the new neural connections.

Try to scratch your beard gently, caress a cat, etc. Lace your shoes differently, switch from one loop wrap to bunny ears. Since I watched "Dealt" movie I've been shuffling a deck of cards while reading from screen, it feels very comforting.

You have to foster these good habits the hard way, through repetitions. Don't be hard on yourself plucking hairs or skin picking has occurred once again, but praise yourself for how much of a cat lover or agile deck shuffler you are.