Hey!

Since you have lots of preparation to do, you must not waste any time and already get started with your course. First thing you can do is to segregate your course or divide your course. Determine what is to be done first and what is to be done later. Then simultaneously prepare for it daily without any fail. You can make a schedule of what all topics to cover or practice in a day and strictly adhere to the time table. Also, along with your preparation take care of your health too. You should not overexert yourself. You can do some Yoga or meditation as it can help you be fit and concentrate better. You should make notes and write the key points of each topic and revise it daily. If it's any specific exam you are referring to, then you can write it in the comment section so that specific preparation techniques regarding that exam can be provided to you along with the best recommended books for the exam.