When your favorite player scores 40 points you are on a high for the next 48 hours. When your favorite singer wins a Grammy award, you feel vindicated against your friends who don't like that singer as much as you do.
You get more excited for their success than you do your own. Conversely, you demand more achievement and a higher standard of them than you do yourself.
Why?
What do they have that you don't -- 2 arms and 2 legs? 24 hours in a day? A brain and the means to express what you feel and think? Food, clothing, shelter?
Your success will multiply immediately when you hold no human to higher standards than those to which you hold yourself.
#WorkOnYourGame