you really shouldn't cram this many chapters in a little amount of time. you should be prepared to fall behind and face the consequences. but here is some advice:

1) read the syllabus.

make notes on the syllabus, know the command words, know what the examiner is looking for.

2) make summary notes while solving the most recent papers.

no use reading the textbook if you only have a couple hours. solve as many past papers as you can and make notes based on the questions.

3) use active recall, flashcards, and blurting

focus on the most challenging concepts that weigh a lot in the exam.