I cannot agree enough with this statement and especially love your closing. We definitely don't tend to be able to take enough time to really care for ourselves and try and fail at new things.
This is the big reason I have such strong feelings about pushing kids into a competitive space. Whether that's sports, chess, marching band, etc. Just as long as there is structured practice and then competition against another person or team.
Because sports really will teach kids that no matter how hard you practice, sometimes you just won't win. And that's okay. The important thing isn't winning every time, it's getting back up and pushing even harder when you lose to win next time.
Its a critically important thing for people to learn, and I can't think of a better and safer place than youth sports.
Science and academia, too. There's way too few papers being published about failed experimemts. "I thought A, so I did B in order to achieve C, but it didn't work out because of D." is a very useful result.