I believe we all have gotten a decent share of good chances in our life but we either don't see them as genuine opportunities when they are presented to us or we deliberately ignore them as too good to be true. What I try to get across is that luck is real. And it is not an abstract thing which happens to anyone but you. It happens to you as well even if you personally consider yourself an unlucky person, a complete failure in the luck department. Obviously, if you do so, you will ignore your chances, and this would work as a sort of self-fulfilling prophecy.