I'm roughly your size. I'm 5'5 160lbs. I fell in to the rabbit hole many years ago, and after looking around and doing research, I found out the flex rating doesn't change when you cut the stick. What changes is leverage. Here's a video explaining things by a True Hockey engineer.
Once you realize the flex rating doesn't change when you cut the stick, things became simpler. Once I cut out the noise, it was a lot easier zeroing in on sticks that were right for me. One thing you have to keep in mind is each company's sticks will flex/feel a bit different even if they have the same flex rating. This feel will also change with a change in kick point. Depending on your shooting style and what you're used to, for some, low kick sticks feel stiffer, to other's they feel whippier.