Two factors are the most important and can make a
difference between a FAIL or a PASS. Knowledge It has to be impeccable!
Check the learning outcomes.
You need to be sure that you've covered all SERU TPH handbook 10 sections,
everything, especially the topics that represent the grammatical, drop, and
place questions.
So what I would suggest is still going through what you've been doing
before. Revise your SERU TPH handbook book and if you feel still there is a
gap take some Mock tests and practice, it will help you to understand where
is a gap and where you need to improve your knowledge and confidence.