How often do you make mistakes when you are doing something which you have mastered? When was the last time you fell down while walking? If all you ever do are things you have already mastered, you will rarely, if ever, make mistakes. But that's going to be a very boring life to live, won't it? We make the most mistakes when we try something new. The less like anything else we've tried, the more likely we are to make mistakes. So leave the comfort zone and start taking some risks!