There should be a book with about 500 pages that is issued out to 15-year old kids, with 1,000 things to consider in life.
This should be on page 8 (my humble belief).
A lot of things 'matter'....but the truth is....if you CAN'T control or maintain those things, then the bulk of things don't really matter.
The 80-percent group that you can't control? They should be lesser prioritized and probably considered not that important.