Jeff J. Lin looked at the life of director Ang Lee and pulled out some insights on what it takes to be successful. This part from Ang Lee and the uncertainty of success talks about the long periods of non-success that often occur:

If you’re an aspiring author, director, musician, startup founder, these long stretches of nothing are a huge reason why it’s important to pick something personally meaningful, something that you actually love to do. When external rewards and validation are nonexistent; when you suffer through bouts of jealousy, wondering “How come so-and-so got signed/is successful/got a deal/etc?”; when every new development seems like a kick in the stomach, the love of what you are doing gives you something to hang onto.

Much is made of genius and talent, but the foundation of any life where you get to realize your ambitions is simply being able to out-last everyone through the tough, crappy times — whether through sheer determination, a strong support network, or simply a lack of options.

Related, Paul Tough’s thesis on how children succeed:

Noncognitive skills, like persistence, self-control, curiosity, conscientiousness, grit and self-confidence, are more crucial than sheer brainpower to achieving success.