Like many women, I was wired to believe that if I was helpful, I’d get ahead. We people please so as not to cause conflict, not rock the boat. But when we say 'Yes' to others, we're really saying 'No' - 'No' to our own well-being, self-esteem and perhaps even our careers. What we sometimes fail to realize is that the power of saying 'No' is what makes us stand out - and in a good way!