Confidence is often the single differentiator between people who get what they want and people who don't. Those who think and believe they can do something -- run a marathon, start an entrepreneurial venture, ask someone out (and have them say yes), win a competitive promotion, fit into their pre-pregnancy jeans, build a fun social circle, well... they do it.
Our mind is a very powerful tool, and the impact of our thoughts and words cannot be underestimated. Our thoughts create our emotions. Our emotions create our actions. Our actions create our life. Confident people have greater control over their minds and have tuned their mental station to one of "I can." *
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