Quality of life is a misnomer
Quality of living is what matters
As with all kinds of quality ,it is subjective
Lets breathe some objectivity into it,can we dare?

If you atleast have had been, fortunate enough to say “it was a close shave!” after a few mega fuck-ups

If you atleast have had, a few instance of inserting genuine happiness into people’s lives (close family should suffice)
If you atleast have had, a few authentically satisfying days at work (excludes pay days and flimsy award ceremonies)
If you atleast have had, a few assisted wild carnal encounters
If you atleast have had, a few unassisted wild spiritual encounters

If you atleast have had,a few instances of buying what  you desired

If you atleast have had,a few instances of somebody(friend or alien) saving your posterior

If you atleast,have had,a few instances of returning the favor

If you atleast have had,a few instances of beholding a natural sight, away from your usual dwelling place

If you atleast have had, a few years of genuine affection from the one  you desired

If you had all of these,I think you have already lived a quaility life

If not,do what is missing and you have attained your piece of quality….