That is what you will become. Spend 15 minutes a day focusing on a positive picture. Strengthen your weaknesses and strengths at the same time. It's not what happens to you, it's what you do with what happens to you. Attitude manifests itself in your response to events.
Hard work makes luck.
Nothing affects positive circumstance and results more than hard work. Many years ago I was driving down the road listening to a tape by Earl Nightingale, one of the founding fathers of personal development. All of a sudden, all the other quotes and advice made sense. The strength of self-belief is within your own spirit, if you hunger for the feeling. And these words are food for yours.