How do you know that your life has been good enough?

That you've done enough
That you've been enough
That you've accomplished enough
That you've given enough
That you've strived enough
That you've endured enough
That you've toughed it out enough times
That you've ****** up enough hardship
That you've checked enough boxes and jumped through enough hoops

How do you know
that when all of the plusses are added
and all of the minuses are taken away
that your life doesn't equal
a big f-ing zero?