I'm Isabella Swan and I'm a Vampire (Twilight fanfic)

I'm Isabella Swan, and I'm a Vampire. A few days ago, I would have thought that Vampires, werewolves, and other Mythical creatures didn't exist, but now...I'm a part of their world. A world I never thought or believed would have existed. But now I'm one of them. But when you live forever, what do you live for. What do I live for?