What’s one thing you absolutely cannot do? The one thing your adhd brain just goes haywire if you do?

For example I’ll use myself. For me I cannot step on a crack when I’m walking. Idk if it’s due to the “step on a crack break your mothers back” thing or just a me thing. Everytime I step on one I feel icky and like I failed someone 😭 Obviously I can’t avoid every crack known to man but I do try my best not to. Another one for me is having a fan on. I cannot! Sleep without having my ceiling fan on. It’s impossible for me, unless I’m in a foreign environment or at a hotel or something. That fan stays on, no matter the weather

Edit: A lot of people are telling me this isn’t an adhd thing and more an OCD 😵 I’m gonna have to talk to my doctor about this!