The Encyclopedia of Interactive Performance

To get better, you have to be willing to fail. If you try to avoid failure, you won’t improve. Failure is a great teacher, if you’re willing to learn from it. Don’t try to fail, but embrace it when it happens.

One way to become comfortable with failure is to take a risk each time you play. If the risk results in failure, you’ve succeeded in being fearless. If it results in success, it diminishes your fear of failure.

Success is stumbling from failure to failure with no loss of enthusiasm.
– Winston S. Churchill

That said, beware of cheering for failure. This practice can be a way to avoid the pain of failure. Pain is a great motivator. Don’t mask the pain by demonstrating how much you “love” failure. Feel the pain, but don’t wear the shame.