Life is like a colour-book, and we are the colourist. We're born with our life all drawn out; grow up, go to school, get married, have kids, experience love, experience grief and hate, and ya da ya.
What we do with it is up to how we colour it. Some people skip the page they dont like, others find it missing. Some colourists are perfectionists and never crosses a line while others are wild.
Just remember, you have one colour-book, live it out, just don't destroy it too soon.