The Flashpoint Paradox takes inspiration from the comics but makes certain changes to fit the cinematic or storytelling needs. Some elements might be similar, but there are notable variations.
You can start by getting a collection or individual issues of the Flashpoint comics. Then, just sit back and enjoy the story. Make sure you have a quiet and comfortable place to read.
I don't have the exact figure at hand. But you could try looking up on comic book websites or reaching out to comic book enthusiasts who might have a better idea of the total number of Flashpoint comics available.
The Flash isn't usually depicted as Hispanic in the mainstream comic versions. However, there might be alternate universes or specific story arcs where his ethnicity is presented differently.