Mental life is fundamentally about adjustment to environment.
The future isn't written in the stars. There are no guarantees. So claim your adulthood. Be intentional. Get to work. Pick your family. Do the math. Make your own certainty. Don't be defined by what you didn't know or didn't do. You are deciding your life right now.
I think the best actors are the ones who are willing to be vulnerable and open themselves up to the possibility of failure.