The culture will tell you to focus inward, and to wait for some great event to happen. You'll win the lottery, you'll be discovered on a TV show, or you'll meet the right person. The culture will tell you it's all chance and you have to put yourself first.
But, counter-intuitively, to be happy and successful you have to focus outward on something bigger than yourself, and completely forget about random good things happening or imagining what might happen if they do. Find something to pour yourself into and make yourself useful. Today. The more you focus on yourself and luck the more you are missing the entire point of living. Don't be a spectator in your own life.