play videogames, read good books, go kick the asses of every Twilight fan out there. and that is the same for Vampire wannabes. learn a multitude of martial arts (hell, I'm super strong ,fast, agile, with super senses, I could become a friggin' death machine) learn magic (including, but not limited to, blood magic and necromancy) document all the knowelege and techniques of the afore mentioned martial arts, and document any and all powers a vampire has, from super senses to becoming mist to psychicaly domination of lesser minds for future generations of my vampire coven/family or whatever you call it. establish a good teritory and set up base, and eventually become an "Elder" and be relied upon for my knowelege and experience. all within, oh, say, half a millenium or so. 300 years at least. I've got time.
EDit: oh, philosophy and be head of the vampires as a species.