Reframe your view of failure. Look at it as a component of success.

Failure can be discouraging, but remember that every successful leader, athlete and entrepreneur has failed. The secret is to “fail forward”: Learn from situations that don’t go as you’d hoped and keep pursuing your goal. Think back to when you were a child: You learned how to walk by falling repeatedly. The same rule applies in adulthood. 

“Successful players in the game realize they must learn from situations so they can effectively navigate through it every time the situation pops up.”

While you should become comfortable with failure, this doesn’t mean you should be comfortable with losses.