Aahhh, plucking my fingers. It’s so ingrained in my head that there is some special separate process (that I don’t control) in my brain taking care of this.

My wife will slap my hands when I do it because I asked her to help me stop it but even when in my head I’m like “stop. It. Now.” then one hand just moves to the other and starts plucking and I’m like “wtf, I said stop!”

The one thing that I’ve noticed that helps is prayer beads. I’m atheist, but they work wonders to occupy that little process in my head, I redirect all it’s attention to those beads and so with one hand I’m moving the beads one click forward every half second or so all day long. That works!