1. I have been using the Rajesh notes to revise and understand all the concepts and in paralleling with PMBOK.  AM not still 100% after my first time.
2. All the tests have taken so far, I am getting less than 60% and am working hard on the topics that I failed badly.

RIta fast track 58%

Pm Study 4 - 59%

Super PMP - 56%

Skill soft - 59%

Oreilly - 57%

Can anyone give me advise on how can I understand and memorize all the topics that will help me solving and able to pass the exam.

Thanks in advance.