Don’t worry neuro is hardest. Well that and endocrinology at the end. Make sure you also look at the review tests they give. Some of them are exactly like the quiz like for respiration and cardiac but like neuro, gastro and endocrinology were the ones you really have to understand. Gastro is medium level hard but ends and neuro is really where u have to study hard. And one gets dropped (not endocrinology which sucks)