Let's say indeed you are a follower of the Bible. If you practice astrology, that is a violation of the First Commandment. No other gods, remember? The origins of astrology are of other cultures with multiple gods. The Hebrews in the bible with their single god, did not practice astrology. They considered all fortune telling an abomination.
There shall not be found among you anyone who makes his son or his daughter to pass through the fire, or that uses divination, an observer of clouds, or a fortune-teller, or a witch, or a charmer, or a consulter with familiar spirits, or a wizard, or one who calls to the dead. For all that do these things are an abomination to Jehovah. And because of these abominations Jehovah your God drives them out from before you. (Deuteronomy 18:10-12)