Life is fair, you need to consider whether your actions failed because you were trying to improve yourself within a failing system. Change your env not only yourself.

Don't hear what they say, hear what they do.

Health first, including mental.

Those that achieved too much are outliers of those that made crazy plans. A bad strategy for the general population, many thousands have failed so that you get to see the celebrity. A badly biased sample on which to base your life strategy.

Choose boring for the important stuff and people in your life

Set expectations and boundaries for yourself and others

Most death bed wish lists have as a top item "I should have worked less"

You are working to make money, expecting to like is is self entitlement or self delusion

Read the news, read history, read psychology.

Inspire your kids, give them non individualistic principles. Easiest way to achieve success and happiness is in a positive and down to earth group / family.

Nothing is forever, effort is the reverse of entropy

Talk to your parents kid, they are soon leaving.