Can you review the intricacies, with like the additions of NADPH, etc.?
You most likely won’t need to know the details of everything because there is so much College Board could test us on. Instead of knowing the specifics of everything, focus on the bigger picture, like the inputs and outputs of the Krebs Cycle. Here’s a good article from khan academy that explains the Krebs Cycle if you still need it: https://www.khanacademy.org/science/biology/cellular-respiration-and-fermentation/pyruvate-oxidation-and-the-citric-acid-cycle/a/the-citric-acid-cycle
Hope this helps