I do not know many people who want to work until they are old, just to retire and not have the physical ability to do the things they have dreamt of doing. It is easier said than done though…
There is currently a minimalist trend. Some have taken it to extremes of living in their car to save money, but there must be something better.
I ran across this youtube video that explains the F.I.R.E. method, and Enough.
Enough: define what you need and do not live beyond that.
Watch this 26 minute video for an explanation from someone who has been doing it for 20 years.