I would call this a fantasy larp, there’s no such thing, and all you’d be doing is damaging your energy system that is already 100 percent capable of taking energy from anything, including other humans. Why would you remove all your other feeding options and turn yourself into a parasite only able to feed off humans? That’s anti survival.
There’s no one “vampire species”: vampirism is a behaviour and skill not a type of being.
Speaking as a qigong practitioner, honestly I have nothing but contempt for this bullshit and I have made the reasons why very clear many times on this forum. It’s just encouraging you to hurt yourself for no benefit, because goth is cool.
Research the historical source of vampirism and you will see what they really are, and how Bram Stoker romanticised the idea in fiction. It’s one thing to call an egregoric entity created through fiction, it’s another to fuck with your energy system based on a complete misunderstanding of how energy working even works
My main reasoning is here:
If you want to do energy working, of which vampirising a person is a very tiny subset, just learn energy working.