Feels like a cheap shot, even if the author is in their twenties.
They're not saying their experience is universal, just what helped them. This is the type of question that is not solved quickly, it is probably something that takes a decade or more to really crack.
Agreed. I'm just over halfway through my 20s, but this same realization has led me to finally just enjoying life a little.
All my life so far has been spent constantly stressing over avoiding (potentially unknown) setbacks. I used to ignore this advice because I interpreted it as giving up on my goals (and of course the stakes were much lower). But getting into real world stakes, I started to stress myself out so much that it was becoming detrimental to my health. Finally taking my parents' advice and adopting this mindset has shown me that I can be harshly self-critical and ambitious without making things miserable for myself. If anything, it has made me able to pursue additional ambitions.
Being dismissive because the author is only in their 20s is ridiculous, feeling at peace and being satisfied with the direction your ambitions are taking you in is not age gated.
They're not saying their experience is universal, just what helped them. This is the type of question that is not solved quickly, it is probably something that takes a decade or more to really crack.