No. The divisions you see in Christendom are fairly well established and due to theological differences. The independent thinking Christian theologian or if that is perhaps not noninclusive enough, the nondenominational, is a new phenomenon.
In a sense I do mean do your own thing, as in not subjecting yourself to the traditions of men that seem nonsensical or unfounded to you, but not in order to reject scholarship but not to make the assumption that it has a monopoly on knowledge. You can easily research the apostasy in modern day traditional Christianity. You don't need a formal education or Jewish ancestry in order to do such a simple task. It isn't brain surgery. But it also isn't about stubborn intellectualism or world view. Challenge everything, including scholarly opinion as well as your own.