Task focus. Imagine you are in a prescription room in a pharmacy. You have to inventory. Full bottles are easy as they are full price. Open ones have to be estimated. The only pills that have to be counted out are Schedule 3 narcotics. Prices are in code. It's a big room. Don't look around. Concentrate on what's in front of you. Bit by bit you will get the job done.. It's self defeating and exhausting to look around. If you just do that which is in front and keep moving, you will get done.
This is good for whatever faces you or wherever you are in the midst.
It's not the length of the post, but what is said.