Unfortunately the astronomy field is one filled with extraordinary claims that lack irrefutable evidence. Controlled experiments show that astrologers' abilities don't exceed the degree of chance of their predictions coming true, although it is barely testable to begin with due to the vagueness of the predictions. Astrology itself even has some inconsistencies in its history. First, there used to be 13 zodiac signs, the missing one being Ophiuchus, which was discarded after it was decided 12 was the favorable number of signs. Also they don't account for the "wobble" of Earth's axis over a period of 26,000 years. This wobble has changed the current signs to be at least one sign off from the constellation the sun rises in from 2,000 years ago!
Personally I don't believe in astrology or horoscopes but I do enjoy reading them from time to time. Enjoy this short 1 minute video from Bill Nye on the subject.