Failure is GOOD, it’s your ever present friend in you getting better, without it, you would settle for a very low standard in life that was easy to jump over all the time, but ultimately give you far less reward and benefits to your health.
Your character is BUILT by your failures.
Accepting you have to do way less as you age is like going to school, learning the 5 times table and then progressively getting worse as you go up each year-NONSENSE and it wouldn’t be allowed in school, by your parents/guardian or anyone around you, unless someone said it was “okay” to do so and have so little ambition.
Are you getting better by challenging yourself? Or getting weaker and less healthy by creating a far LOWER BAR for yourself?
