You have to fail, man, but you cannot allow failure to stop you from doing what you must do. Failing is just as good as succeeding in a lot of ways. It's how you react to it all. You can react to success the wrong way and be a total failure. Or you can react to losing with your whole heart, learn from it, and be a huge success. In stand-up, I've learned to know when I'm burning it up or when I'm being so-so. That's experience. I learn every single time I'm on a stage.