Thomas, first of all, well written, as always.
Secondly, I cannot stress enough that not giving a fuck is a learned skill. You can’t just wake up one day and totally shift your mental psyche and life direction. That’s traumatic. It’s like jumping into a cold shower.
As someone who’s struggled with not giving a fuck in the past, and then eventually learned the art, I can attest to the need for working your way from giving a fuck to not giving a fuck. Like, you need to exercise your no-fucks-given muscle.
The underlying advice you are giving — to unabashedly chase your passions — is undeniably valid. However, I think where many people fail to follow that advice is when they think this has to mean a major life-changing event and anything else would be a failure.