If you could restart your life from the very day you were born would you do that, and if yes, what would you do differently or what mistake would you fix?

Let's say life is not going as planned and/or you are unsatisfied and unhappy. It could be any example like wishing you hadn't dropped out of school or or you never would've gone to prison or maybe even marrying someone who you thought you'd be happy with. Again, it can be any example.