Long term, you get more out of life from your failures than from your successes.
Success is wonderful, but there are substantial benefits to failure as well. The list below is based upon a conversation with one of the world's top motivational speakers, Art Mortell author of The Courage to Fail:
Failure teaches you more than success, especially about yourself.
Failure renews your humility and sharpens your objectivity.
Failure creates the perfect opportunity to try out new ideas.
Failure helps you make corrections so that you stay on target.
Failure makes you more mature and more resilient.
Failure reminds you to be kinder to yourself and those around you.
Failure is a "badge of courage" because you dared to take the risk.
Failure develops the all-important emotion of patience.
Failure warns you to not take things so personally (or so seriously).
Failure grounds your self-esteem on who you are, not what you do.