I'm somewhat reluctant to get into this, because it's probably about as unlikely to change anyone's mind as a debate between an atheist and a Christian about the existence of god would. However...
There is no science of astrology. It's pure pseudoscience, flummery and self-delusion from start to finish, and has nothing to do with reality. It has no plausible mechanism, doesn't survive routine statistical analysis, has no internal logic, its practitioners cannot agree even among themselves about the basics of how to do it, and it has contributed exactly nothing of substance or value to any legitimate field of human knowledge. It is, in fact, demonstrably false.
Think you're a Taurus, for instance, according to the sun signs? Wrong. The sun was not in Taurus when you were born, it would have been in Pisces or Aries, depending on the exact day of your birth. 2500 years ago when the Babylonians put all this together it would have been in Taurus, but due to an astronomical phenomenon known as the precession of the equinoxes, things have moved about 30 degrees west of where the Babylonians saw them. I'm a Taurus, and on my birthday the sun was about in the middle of Aries according to this little astronomy program I have here.
So should I read the horoscopes for Aries, or Taurus? Doesn't really matter, they're all nonsense anyway.