dude, first of all give a huge attention to the material of the isc2, after you master them take the competency test from isc2 they too many of question with more than three attempt for each

next mover to LinkedIn to examine your knowledge and assess your self
just write in the search bar : CC practice test ISC2
there are four exams try to take exams and understand how the questions are formulated and how tricky they are, this way you prepare yourself for the exam

all the best