Shoot for the stars. You may not get the stars-but you may get the moon.
Our society is so caught up in winning, we forget that most of the great men and women in history have, at one time or another, failed at something. Often repeatedly, and discouragingly. But each failure is nothing more than a brick in the wall that forms the foundation of our success. We can't forget that.
There are things in your life you can control - and there are variables you can't. The more diligent you are at controlling what you can, the more influence you'll have over your destiny. You just have to figure out which are which.