I'm aware that astrology incorporates more than just a person's "sun sign" and have been told by believers/practitioners that we have a moon sign, rising sign, etc. Which can actually be opposites of each other. So that makes the system basically unfalsifiable because any outcome can be explained through some interpretation of one of the 4 signs that might apply to you, sometimes. So as a serious tool for accurate predictions of events or descriptions of personalities, it seems quite dubious.
Fortune telling isn't necessarily the point of divination and IMHO the poorest use of the art. It's less about it being "accurate" it's about it being a useful thought-provoking tool to think about a life situation. Falsifiable procedures actually destroy that kind of utility. I'm just going to toss this here:
Divination - Not What You Think