"冇用." I still remember hearing those words when I missed a spot vacuuming or didn't pick up all the nails or some other chore wasn't done perfectly. 冇 is a negation and 用 means "use." 冇用 means "no use" - useless.
Since I was small, the worst feeling I could have is feeling useless.
On a deep level, I feel everything needs to have a point and everything I do can be improved. I subconsciously want to fix things, to be productive. To not waste time or effort.
What if I just enjoyed life? What if I just do things for the sake of them? What if I stop judging and start doing?
In my life committing to being useful, I never asked the question, useful to who?
Usefulness is subjective, so you might as well do something you enjoy.