No worries, Fabio; I'm glad to help if I can. It sounds like you've got things well under control and a clear idea of the challenge ahead. That's half the battle.
I'll try to expand on the points you've raised and fill in some other blanks that I think may be useful. (I hope we're not going too far off-topic in this thread, moderators.
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After having tried my first batch of 10 timed PrepCast practice questions back in mid-November 2022, I decided that the added time pressure was stopping me from getting the most from the explanations. I only did non-timed ones from then on.
I generally did groups of 10 or 20 questions in one go, simply due to other life constraints. Yes, I also found that reading -- and most importantly properly *understanding* -- all of the explanations took a long time, but it's really, really worth it in my opinion. It gets quicker as one becomes more familiar with the vocabulary and contexts.
Some days I would do as many as 50 practice questions in total, but never all in one session.
The in-person course that I took was with a local company specializing in training for professional certifications. It was designed to provide about 42 hours of classroom time, so a little more than the 35 hours of formal contact that PMI requires candidates to have had before they can apply to take the exam.
The group was limited to 12 candidates and we had class once a week. I live in a French-speaking region, so all of the training was in French. Having to learn terms and vocabulary in two languages takes longer but it also helped to reinforce my understanding and memorization.
Our classroom time was divided between PowerPoint presentations of salient points, distilled from years of the company's teaching for the PMP exam, and then equally-useful sessions where we could bring problems/grey areas to the group and clarify them together with the tutor. He did lots of coaching on how to approach the question styles of PMI. We also spent a good chunk of time towards the second half of the course on how to draft and submit applications in order to have our professional experience validated by PMI. (It takes longer than we all expected to write and rewrite these texts.)
On the first day, the whole group was tentatively registered at an exam centre for a date that was about one month after the end of the course. The week before the end of the course, we had all had to submit our applications to PMI and hopefully be accepted, so that we could take the exam together on the target date.
From the very first class, the tutor underlined the point that working through questions in PrepCast between classes would be of the utmost importance and that we couldn't leave it all until the last weeks/days before the exam. He asked us to aim for 200 questions per week (!), on top of reading large sections of the PMBOK7 and the Agile Practice Guide.
About five weeks before the PMP exam date, he then asked everyone to have done the first PrepCast Simulator exam, in exam conditions at home, even if we didn't feel ready, and to talk through our experiences in the next class. Most people in the class didn't pass the first one, but he reassured the group that that was usually the case. The company had an excellent success rate for the PMP, so this approach seems to work. After that, he suggested that we continue taking the remaining Simulator exams regularly, around once a week, which I did.
If I recall correctly, I finished doing all of the available practice questions (except the ITTO ones) in the same week that I took the third practice exam, so I was still doing practice questions alongside the Simulator exams. They aren't really any different, you just have the added complication of the 250-minute countdown timer for the exams and the need for greater physical and mental endurance!
Reading through all of the answers/explanations after each practice exam took up my available study time for three or four days following each one. That was even more tiring than taking the exams, but very useful.
By that point, I had built up copious notes (using OneNote) and made hundreds of digital flashcards (using the free version of Quizlet), allowing me to study anywhere that I had access to an internet-connected device. I found studying/learning the complete glossaries of the two PMI texts that I mentioned earlier was an excellent return on investment of my time, helping me to understand the PrepCast answer explanations faster. YouTube is also a great source of content for PMP preparation.
When I wasn't using the above, the rest of my studying was looking things up online in order to better understand why I had got certain questions wrong, trying to find further supporting explanations and to expand on the often limited information in the PMBOK or the Agile Practice Guide. Too often, in those texts there will only be a line or a paragraph about an obscure subject which is mentioned in a practice or exam question's explanation. I lost count of the times that I went down internet rabbit holes looking these up, but the active learning is of great value!
Anyway, I've rambled on enough. Keep up the hard work. There will be days when you don't have the time or energy, but try as much as you can to add to your practice and knowledge each day, even if it's just a single batch of 10 questions. It's all worth it.