The first time I took the exam in mid-2019, I had only taken a course on projects (in Spanish), to get the 35 hours required to be eligible. I had read Head First PMP. I had a simulator in Spanish with a lousy Spanish translation. I took the exam in English and took it lightly, I failed.
My recommendation is to be consistent in your study, read the entire PMBOK and Agile Practice Guide, Head First PMP, and Rita Mulcahy's PMP Exam Prep, and get a good exam simulator like "The PMP Exam Simulator", take all the exams that the simulator offers. What worked for me, was to review all the questions after each completed exam, first read the correct questions and the incorrect ones, then just focus on the incorrect ones, read carefully the very detailed explanation that comes out in the simulator and then read the references it showed.
When I finished reviewing, I would take another exam and so on until I took all the exams in the simulator once (at least twice a week I would take an exam), so when I went to take the exam (in Nov 2020), I passed it without problems. I recommend studying for two or three months and three hours every day (if this is possible).
