I've lost many years of my life to physical disability, and pretty well all of my life due to mental problems which mess up my ability to deal with people[0], and without relationships you are nothing.
Reading this feels like someone telling others to "eat, drink and be merry", when those others are have no food or water - but the merry advice-giver has plenty, so what's the problem.
I'd never take away from someone else what I never had and likely never will, but frankly I wish more fortunate people would stop dishing out their insensitive, thoughtless advice.
[0] blah blah poor me with my sob story. Shit happens.