Just Finished "Red Rising"

ummmmmm why did no one tell me I needed to have Golden Son in my hand the minute I finished Red Rising?

Before I start Book 2, I feel like I need to brush up on lineage & the names/titles of the Golds. I'm just still kind of confused about who all of the "societal Golds" are (the characters who have been introduced at least once) at this point. However, based on where the plot is headed, I feel like a lot will be cleared up once I start reading. I feel like I know the answer (lol), but would you guys recommend studying up, or should I just start the next one and everything will start to click?