Henry Ford has a famous quote, ‘if you think you can do a thing or you think you can’t do a thing, your right.” I believe this sums up most of life quite nicely. Self-confidence and self-belief do matter. So much about success and happiness is related to your mental attitude and emotional resilience. Some of us may have a harder time than others or start out with more baggage, but the history of civilization proves that ordinary people can achieve extraordinary things and overcome great obstacles in the process. While it may seem easier at times to give up or give in, you must fight these feelings, forge ahead and persevere. Never embrace failure and unhappiness as your default reality.