If there's 1 mistake ud like ur generation not to repeat what wud u say it is?

All of us commit mistakes in our lives, and that is almost always everyday. To some mistakes we tumbled upon generated a very complicated path for us. But at the end of the road, as you look behind you'll see how you've grown so much and how wise you've become. And then slowly, you stand up again, face the world with a whole new view.

There are no lessons learned in easy way. All are encountered in a hard way. But whatever mistakes we made, they sure bring color to our lives, after all a life that's too perfect is indeed boring, right?

I want to know your experiences about life, the mistakes you've committed that surely made a difference in your life. Those mistakes that brought color to your life but you never want others to commit themselves..