Similar to the advice you read on "creating your own luck", you need to put yourself in situations where "serendipity" can happen more easily. In other words, if you want to become an actor, move to L.A. If you want to work in Finance, hang out in Wall Street, etc. There are of course no guarantees, and of course you can become an actor without living in L.A., and a financial analyst without being on wall street.
If you walk through a bad neighborhood by yourself late at night with a George Costanza like wallet bulging in your back pocket, you increase your chances of being mugged. It won't happen every time, but you are certainly "tempting fate".
So, "walk" in "neighborhoods" where you tempt fate in your favor. Go to meetups. Volunteer at organizations where people are trying to solve important problems. Ask people you find interesting to go for a coffee. Socialize with small business owners. Contribute to open source projects.
There is an interesting Forbes article on "The Four Essential Personality Traits Of Every Entrepreneur", one of which is "Luck-Dominant":
"...luck-dominant founders—which make up more than 25% of founders in the authors’ studies—are men and women whose positivity and intellectual curiosity create circumstances where a positive outcome is more likely. In other words, “they’re lucky by attitude, not by fate.”
