How to stop hair pulling?

I've had severe trichotillomania for 13 years. Nothing helped me except probiotics (helps a little, stopped my nail biting completely) and mirtazapine (helps a TON, so glad I found it!). I was pulling about 100 hairs a day. Today I haven't pulled any, and yesterday was only one.

When I was younger, I put band aids on my fingers, the little finger slips that the mailmen use to prevent paper cuts, and some other finger slips.