chase your (own) tail
idiomPart oftail
chase your (own) tail — idiom
1. To spend a lot of time and effort doing things that do not achieve anything usef
1.idiom
Definition
To spend a lot of time and effort doing things that do not achieve anything useful.
Example
Maya felt she was just chasing her tail at work all day.
Stop chasing your tail and focus on one task at a time.