Being Immortal

When I was young, I was taught that I was a monster, that I could not be trusted… and so I stand, alone, afraid, and in the face of danger. Vampires want just a taste; Werewolves stalk me like prey, Humans lust for my flesh, and my own kind? They left me here to defend the balance. So, who am I? I am the last Immortal walking on this earth.