Setting goals in your academic term can help you cover more syllabus in less time. This way you will know exactly what you need to learn and what you can skip.
Create a schedule for your studies. This will help you in creating a habit and you can study efficiently in those hours and you won't miss any subjects as well.
One of the best ways to learn something that you have studied is by teaching it to someone else. This way you will learn the things quickly and won't forget it.
One of the best tricks to study smarter is by being organised. Make sure that your notes are in one place and you make subject-wise notes at the same place.