Hello Dear friend!
Exams can be a real pressure and a threat to our mental wellness. You need to be patient, hopeful, and work hard continuously. Sometimes, it is not about time you are spending to read and study your course, it is also about the techniques and strategies you are using to remember everything and make the most out of your knowledge. You need to get rid of anxiety. Anxiety and stress can diminish your cognitive capability and make your efforts go into waste. Secondly, try to talk to your teachers about how you can improve and the areas to work on. Then come to the techniques, read and keep one book at a time, and don't keep all of them to scare you. Plan your schedule lesson by lesson and never jump from one to another without understanding it completely.
I hope these tricks are helpful and if you need help, please nudge me anytime you want! 🙂)