Could you help me revise my composition? Thank you! As is shown, on the football filed a race is on, a young player hesitate to shoot by the thought of the goalkeeper’s massive size, which in fact significantly overstated due to his fear, almost covering the net. At the same time, in the goalkeeper’s mind, he is so smaller than he actually is that guarding the goal becomes a mission impossible. The cognitive errors of overrating opponents as well as underrating our own strength will mislead us into thinking that we cannot overcome life’s difficulties. However, we all know that once con-fronting challenges, possessing courage is of utmost importance. A professor of psychology at Northeastern University says that those who have confidence in themselves and in their abilities are more likely to become executives and even leaders compared with their peers. He adds that the research on how human’s career achievement influenced by mental states and behavior as well, suggested just 42% of most successful people’s achievement would be attributed to their competence and other external factors. Obviously, the knot of the mater lies in the lack of self-confidence, instead of scarce capability. And as we keep at building more trust in ourselves, we will begin to build our self-confidence, one that make it possible for all of us to go out and do our own things without being afraid of failure.