You are looking at the single point of choosing the door as your definition of luck, rather than all the decisions that led you to be in a position where your o

You are looking at the single point of choosing the door as your definition of luck, rather than all the decisions that led you to be in a position where your only choices were between a car and a goat. When I say you mostly make your own luck, I was referring to making decisions and choices so that you don't end up with only a car or a goat as your choices.