@littlebit Well, one of the reasons astrology has such a large following is because the profiles are pretty general, so that whoever reads it sees a bunch of things that apply to them, and subscribes to the theory that it has to do with when they were born.
MBTI is similar in that regard, U guess, but at least it relies on information about personality traits rather than birthdate.
I used to be a Christian, or rather I used to try to be a Christian, but I never really believed in any of it. Pardon me if I'm wrong, but it sounds like you have doubts about the religion you follow.