You may need a new name. Michael or Terry or Jim won't cut it any more, you want something wild and savage, like Phlagan. To go with it, you'll also need a quick description - enough to tell anyone anything they need to know about you. This will be personal to you, but something like The Feared, The Devourer, The Gates of Hell, or The Untamed would probably be suitable.
Also, you must slay all your own food. Don't bother cooking it, you need to consume the noble spirit of the beast. Ideally, the beast should still be alive and struggling when you start tearing flesh off with your teeth. Consume the entire animal.
Remember, if the sight of blood does not send you into a murderous frenzy, then you're doing it wrong.