Hello dear, 

There are few tips that will help you to prepare for your exams: 

• Focus more on your weak subjects. 
• Make your own notes, in that way it will be easy for you to recall. 
• After studying a new topic, revise your notes daily for 10-20 mins. 
• Make a proper time table. And study according to that particular schedule. 
• After completing a topic or chapter, give test or mock of that particular chapter. Hence, it will help in evaluation. 
• Practice sample papers. 

I hope this will help you.

All the best!