Statistics go out the window when you know an actual outcome, so they're useless retrospectively. How likely is it the failing in school helps you? Not very.

Statistics go out the window when you know an actual outcome, so they're useless retrospectively. How likely is it the failing in school helps you? Not very. Given that you have succeeded because of failing in school, what was the probability that failing in school helped you? There's no such thing as that probability because there's no such thing as how likely it is that your actual outcome came about. There's no such thing as what fraction of possible life-outcomes are similar to your actual outcome. At least you can't possibly know these things.