People need to realize most things in business are a "numbers game".
A funnel.
You try 10 companies, 2 work etc.
You have 10 co-founders, each time you learn something.
Don't understate the value of luck and randomness. Even Bill Gates realizes he was just plain lucky as much as he was smart, had the tech, timing etc.
The more you try the more you can take advantage of randomness.
IE if you don;t play you can't win.