Why trying to pinpoint this one bad decision is completely pointless (How most people’s flawed thinking leads to their unnecessary suffering)

If I could go back in time, what would I change in my life and why?

Nothing. But not because my life was so damn fantastic up until this point, but because it is a flawed thinking that if we took this one thing (this unfortunate event, this bad decision / choice) out from a person’s life everything would be much better, or even perfect.