How much of success in life is luck vs. choice? An interesting thought experiment, but the truth is that it's more important to maximize and emphasize the controllable than worry about how much is uncontrollable.
You decide what meaning the events in your life have to you.
https://yourmeaninginlife.com/blog/you-can-find-meaning-in-whatever-happens-to-you
Asking where you see yourself in five years is a good exercise to determine both where you're going and what you want to be doing today to reach your desired future state.
https://yourmeaninginlife.com/blog/where-do-you-see-yourself-in-five-years