Astrology is one of those things that I just don't understand how people believe in it. The human experience is so different for everybody that everybody born in the same month has the exact same character traits. I can disprove that notion real quick: I'm a twin, and we are very different people. And then with all the added rising and moon and whatever, it's just a caveat to explain why two people born in the month of February might be different.
(I do believe in jinxes. Because that is something that happens specifically to you. It is not prescribed, you are the one that tempted fate and she is coming for you. )