Meg Rosoff, What I Was

I am almost a hundred years old; waiting for the end, and thinking about the beginning.There are things I need to tell you, but would you listen if I told you how quickly time passes?I know you are unable to imagine this.Nevertheless, I can tell you that you will awake someday to find that your life has rushed by at a speed at once impossible and cruel. The most intense moments will seem to have occurred only yesterday and nothing will have erased the pain and pleasure, the impossible intensity of love and its dog-leaping happiness, the bleak blackness of passions unrequited, or unexpressed, or unresolved.