Why do I believe my horoscope sign is more superior than most?

I am not a Pisces and I don't know you, so I am not going to make assumptions about you. But, if you think you do believe that, it means that you are self aware and self critical.

Did your education include magic and superstition? Or was mathematics, science, and critical thinking taught? 

Astrology is acceptable bigotry. Nothing is natural about it. The version of astrology a person follows depend what part of the world they live in. Same as religious beliefs. 

Why would a calendar date deem superiority?