"In three words I can sum up what I've learned about life: It goes on."
Life goes on...isn't that a great bit of knowledge? It doesn't matter if you fail your anatomy test, crash your car into a tree, miss few knowledge bowl practices, break up with your girlfriend, or get fired from work. Tomorrow, life goes on and there will be a whole new day full of things to worry about and celebrate about and think about.
So many people seem to forget this simple fact and stay stuck on a problem that is already in that past and is never going to be fixed. Just. Move. On. Because even if you don't, life is going to...and then you will be a million years old and all of the great experiences you should have had were had by someone else and you missed out on everything life had to offer you. Sad day.
So, follow the fantastic advice of Mr. Lennon, and learn that life goes on (: