Comment by robotresearcher

There's a very helpful method for being confident that you did something right, and while it may not be enough for people with compulsive disorders, it's great for many situations:

https://en.wikipedia.org/wiki/Pointing_and_calling

I think it works by recruiting more of your body & brain to the task of attending to something.

Maybe the anxious could video themselves doing it, and watch it back later.