If given a choice, I would not do it all over again period. For one thing, once is enough. For another, who knows what disastrous things could happen if you made a different choice and followed a different path? I am nothing one of those people stupid enough to think turning left instead of right on some random Tuesday would have meant the difference between becoming an eventual happily married millionaire or going blind from a detached retina. One is just as likely to be struck by a bus.
Quick wasting time playing the what if game. Whatever will be, will be. It is not ultimately up to you, anyway.