I am going to present my PMP exam next month, could someone give me some recommendations or study techniques to approve?

You need to plan your strategy to manage the time. Please ensure that you control the exam and not vice versa.Set yourself a target on the no. of questions you will answer every 30 min. to keep the exam in your control. That's really important, as time is of the essence. DONOT waste time on the difficult questions, leave it aside at first and run through all the questions and then come back to the ones left out. You will get enough time at the end.

That was my game plan when I took the exam in Dec 2016 and it worked out well.

Keep calm, and relax. You've done the hard part .

At this point, go through your notes, refer PMBOK, and don't rush for attempting more than 2 sets of mock questions daily. Check for any knowledge gaps.

The day before exam, skim through your notes for one last time, relax and take rest.

The exam date must be near, let us know once you pass.

Good Luck, Eduin !!

I think you should review several simulators and review some concepts.