So, you have to allot times for reading new contents and also to revise old contents on the same day. Tough subjects can be read during early mornings. Revisions can be done during mid day or night time.
When you read every chapter, you should read from the beginning till the end of the chapter many times. Do not stop by reading just as a question -answer pattern. Read the contents of every chapter like reading to gain the knowledge. Read the contents of every chapter in the same sequence as it appears in the text book. This will help you to gain the knowledge in a proper sequence.
After reading every chapter like this in depth, next, you have to start practising the questions and problems given behind every chapter. Now, you can find out the answers easily because you have read the chapter deeply in the same sequence.
After completing all the BOOK-BACK questions , then, analyze every sentence of that chapter and think whether any question can be taken from that sentence.
Write down the question that comes in your mind in a note book. Thus you will create a new Question Bank containing so many extra questions and problems from every chapter.
Revise the above chapter many times before going to the exam.
Thats all. You will find all the questions easy in the exam.
Try this advice.