Reading your notes feels like studying. It isn't. The only way to know if you understand a topic is to answer questions on it and check the marks. Pick a topic below and start.
Write your real answer out. Don't just think "I know this" — thinking it and writing it are very different.
Every question shows you where each mark comes from. Compare it to what you wrote, line by line.
Keep one notebook of mistakes. Before the exam, that notebook is worth more than your textbook.