You need to study many subjects for mbbs students. So you need to study in a way you can reduce pressure for each subject. Study multiple subjects simultaneously giving high priority to one and change the priorities after gradually completing subjects. When studying write, highlight or create mnemonics so that your revision is quicker and easier. As you complete all subjects, revise all until you have time. Save last 1-2 days for the revision of the first exam.
I use this method. I dont know if i am able to make it clear.