I'm a high school student investigating how one can predict the mass and spin of the product of a binary black hole system. I'm fluent in Calculus (Single Variable), Number Theory, and Graph Theory, and High School Physics.
I understand that Black Holes involve Angular Momentum, Scharzwild Radii, Einstein's Field Equations and much more. However, I have no knowledge on any of these topics. As such, it's quite overwhelming and I'm unsure where to begin (I don't have any, if at all, experience in Astronomy). Despite this hurdle, I'm prepared to learn any new ideas/concepts required to make significant progress on my research.
What books/articles/papers/topics should I read to begin understanding black holes and to begin making progress on my research?