If you found a study routine that worked well during your rotation exams, stick with it! If you're still trying to find your optimal strategy, check out these resources:
How to Boost Your PANCE Score, which teaches you how to determine your "unknown unknowns" and what kinds of grammatical mistakes to look for on the exam
The Pummel the PANCE series, which includes four articles by PA-Cs detailing their PANCE study plans, favorite resources, and strategies
The PANCE Study Plan They Don't Teach You in PA School, which covers the tips Adam Rosh gave a PA student who didn't pass the PANCE four times (and she passed after using this strategy!)
The Rosh Reveal vodcast, where Adam Rosh teaches you the thought process behind answering board exam questions
Adam Rosh’s interview by Jessica Veale, PA-S, on her podcast The PA Process discussing test-taking strategies, overcoming failure, and building confidence