The confidence you need is belief in your potential. If you see world-class potential in yourself, you'll put in the effort. If you don't see the potential, you won't put in the effort and you'll wait for the performance, and the performance always follows the belief in self.
Denis WaitleyEverything that is past is either a learning experience to grow on, a beautiful memory to reflect on, or a motivating factor to act upon.
Denis Waitley