1. Dont quit, never give up. U have to get to the finish line.
2. Drive: what drive u? What make u go extra mile when u have no energy left? What make u do it better? Is it ur desire to beat ur competitors? Is it ur pain? Is it ur love for it? Things that keep u awake.
Unless u r very lucky, success is a long and lonely path.
Success has little to do with your intelligent/IQ. I was a looser. I failed and gave up many times. The pain of losing keeps me going until i can make it or die. Quit is not an option.