I want to self study AFM. Please share and advice me.

Try to cover the syllabus at least 1 month before exams and use the remaining time for practice and revision only. The opentuition lectures will get you the understanding but it is your duty to ensure that you attempt a minimum of 4-5 questions per chapter in the Kaplan/BPP exams kit and do 2-3 full exams on the CBE platform under timed conditions. There are also youtube webinars available on AFM and walkthroughs of exams questions. It is also likely that the some of the questions will not be the same on exams day (happened to me for AAA/AFM) but the practice will help you get a grip on the techniques to approach the question and score easy marks.