There are two sure ways to fail: never get started and quit before you succeed. Many companies promote the language of risk-taking and innovation but are so concerned with short term profit goals that their culture discourages innovation (trying new things) and abandons promising projects too soon. It shouldn't require exceptional moral courage to try new things and stick with them.
The opposite of success is not failure. Unsuccessful efforts are not failures unless they so discourage you that you abandon further efforts to achieve your goal. Even then, the venture or effort may be a failure but you are not. Failure is an event not a character trait.
Sportsmanship is the ethical and moral dimension of sports. It is demonstrated by a number of attributes and attitudes such as fair play, respect for the rules and traditions of the sport and various traits of good character including integrity (abiding by the letter and spirit of the rules and concepts of honor); demonstrated respect for others including teammates, opponents, officials and spectators; accountability, self-control, and graciousness in victory and defeat.
Don't let others define you. Don't let the past confine you. Take charge of your life with confidence and determination and there are no limits on what you can do or be.