OCD
OCD is like having a tiny, annoying robot in your brain that won’t shut up. It makes you scratch your face in a specific order, and if you mess it up, you go nuts. It’s a real thing, not just someone being weird.
I scratched my left cheek 5 times, then my right cheek 5 times, and then both at the same time.
I had to check my backpack 10 times before I left for school.
I counted my steps 3 times just to be sure I didn’t make a mistake.