Comment by retsibsi

I don't know; I think people in general are just not great at this. Successful people tend to underrate luck and overrate the brilliance of their own decisions, but the rest of us are prone to either reversing that and blaming everyone but ourselves, or being so determined to take accountability (or just depressed) that we become overly self-critical, or simply not understanding why things happened the way they did and reaching for any explanation that resolves the chaos into something narratively satisfying.