"Call no man happy ... until he is dead." - Neil Gaiman, American Gods
"Obla di, obla dah, life goes on, bruh! La-lala-lala-la!" - The Beatles
Sometimes we accomplish something and feel great about our victory. Sometimes we lose something and despair. Never is it the end. That's what I like about the Pirates of the Caribbean movies and the novels of Brian Jacques: the adventures continue, as in life. Now I don't mean to contradict my older post "The Serial Killer" - Hollywood certainly does not know when to stop with sequels and remakes and so on - but if done properly, a second story and so on can be great. Not necessarily a continuation of where the last one left off; it can also be an entirely different story in the same universe.
I was very happy when I got out of middle school, but it was not the end. New adversities popped up, and t obe quite frank I am glad they do. Life's no fun without a bit of spice, and while the outcome might not always be favorable, if it was I'd get bored. Olivia posted a while back about the novel Things Fall Apart and how just because Okonkwo dies at the end, that doesn't make it less of a story. (Spoilers, sorry! Too late.) And I agree wholeheartedly.
Life does not end until death. And perhaps not even then.