That’s a little like asking what kind of Christian one is. There’s a significant difference between Jehovah’s Witnesses and Roman Catholics, for instance. There are forms purely for the attention-seeking, there are forms that rely on the power of a coven and others that practice solitarily. There is one certainty in this age of social media – anyone doing pub-level magic tricks online is not a witch. Period.
The form with which I’m familiar is Old World witchcraft. There is nothing to "convert" to or into. You are more than welcome to keep your religion, path, and ideology. Old World Witchcraft is a personal experience and a private practice that honors the balance of nature. Practice doesn’t need to coincide with any other tradition, another person, or any spiritual path.
Old World witchcraft, by its nature, is operative and results-oriented. Its ability to manifest measurable results is the reason for its continued presence in the world. An Old World practitioner doesn’t bother with things like initiations, head-priestesses or covens. It’s in the communing with nature and tapping into its elemental power that things are accomplished.