Comment by locallost
It sounds to me like you convince yourself there was no other way. It's an interesting dilemma - lie to yourself that it was fate and live a happy life, or torture yourself with the consequences of the truth.
I like the advice of the article better - approach every decision knowing not all of them will work out. It's what I ended up in the last couple years and it has worked ot out for me. Fear of failure can paralyze you and this will cause even more regrets. The advice doesn't help with old regrets though - for this it boils down to, for me: dwell and die slowly or forgive yourself for making a mistake and move on with your life. Can't change the past, but you can change the future.
Its not that they won't work out, it's that uncertainty at the time of the decision justifies it. Some then get lucky and others dont and most land in between. You did the best you could given the information at the time. There is then nothing to regret.