There is a much better and more effective way to apply your positive attitude in a way that will actually yield results. Things do not happen because of a feeling, they happen because you know the rules and are willing to apply some hard work.
With all the Positive Mental Attitude (PMA) talk floating around the self-deception trap has never been easier to fall into. While a positive attitude is very important in pursuing your dreams, there is a point when it turns evil.