Have you ever been asked the question:
If you could go back and change one thing in your life what would it be?
Every time I hear or think of this question I always think of that movie "Mr. Destiny". Where James Belushi is given the chance to live an alternate life where he hits a home run in high school instead of striking out like he was supposed to. In this second chance he has the perfect life where he marries the prom queen and becomes filthy rich. It all falls apart because he was supposed to be a prick in that life and when he tries to be himself someone screws him.. blah, blah, blah.
My point is although he hated his real life his 'perfect' life was worst because it wasn't the person he should be in order to enjoy it. You are the person you are now because of the choices you made. If for some reason you change the past you will not be happy with your new life because you didn't grow down that branch in life. So despite the whole goody goody story told of someone being happy and poor the reality is if he had really hit that ball and for some reason changed to the poor 'happy' life he wouldn't have been happy with that.
So no regrets in my life and I would never change the past. I'll admit I've changed myself several times trying to predict the right future I want to live. What about those points in life that might have changed everything? Well there's the choice I made to be friends with Sarah instead of more intimate. Not to mention picking Marie-Ann instead of Nancy or even Christy way back in 9th grade. If you notice everything I would like to go back to are all relationships. It was a couple of years ago I noticed this and decided to change my life to find someone special to share my life with.
Instead of looking at the past with regret look at it and change your future. If you wish you hadn't taken those drugs then go through rehab. If you wish you had made the star play then either get back into sports or find something that will get you noticed like politics. Stop regretting what you can't change and instead take those what-ifs and make then will dos.
That's why I don't live with regret and instead make myself a better person. Well better according to what want to be.