“success or failure apparently brought by chance rather than through one's own actions.”
This is a saying that sounds good, but makes no sense. For example, how do you change your luck of getting a coin to flip 90% of the time on tails?
So you would say that one was lucky if they flipped a coin 10 times and nine times out of 10 It landed on tails when they needed it to land on tails. But you know what? If they needed it to land on heads those nine out of 10 times they would be unlucky.
What you all are talking about is not luck, it’s opportunity. You can increase your opportunity, but your luck never changes.