I took the PMP exam a couple of months ago and cleared it on the first try, so I think I am eligible to answer this.
This is what I followed after taking the advice from a couple of PMP experts:
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From the PMBOK book , try to understand the inter-relationship between the 49 processes of the 10 knowledge areas and 5 process groups
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Do at least 3 practice exams.
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I suggest you join Edureka's PMP training.
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Get "Rita Mulcahy" PMP Exam Prep 9th edition book, go through it and do exercises and exams. It's really helpful. Also, Watch "PMBOK Guide 6th Edition Process Flow" video by Ricardo Vargas
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Come up with an Exam Strategy on how you will take the real exam. For instance; answer 50 questions and take 5 minutes chill, etc depending on yourself.
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Control the exam and do not let the exam control you. Psychologically you have to be fit too apart from your preparation. Learn to control panic. Do not be stressed out. Do not get panic. Nothing worse will happen to you if you fail the exam. Do mediation for a short time daily
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Solve easy questions first. Mark long and difficult questions for review later.
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There's a youtube playlist and project management course that you can refer to in case you want to learn PMP and get certified.
Good luck!