Achieve happiness from being and becoming, not acquiring and possessing
While most people are on a psychological manhunt for happiness, the most successful people in anything will tell you happiness cannot be pursued directly. The great ones know that happiness is a byproduct of living life to the fullest.
The pros forget chasing happiness and turn their attention to fulfilling the vision they have carefully constructed. The masses repeatedly attempt to create happiness from the outside in, whereas the great ones know sustained happiness stems from being and becoming, not acquiring and possessing