Vampires do not exist as you've been told over and over. Neither do werewolves exist.
No magic is going to change you into something else, particularly into a creature of fantasy. You are a human and you're stuck with being one for the rest of your life.
We are not trying to hide the secrets of the Universe from you, we are telling you the truth. I am sorry it doesn't match your fantasies, but there it is. Continuing to insist that they do exist is considered role-playing, which is against the rules of this site.