The longer you delay, the more time you are wasting. start training your mind to focus on your studies. At the same time, always be positive and enthusiastic.
Getting yourself familiar with the exam you will be appearing in will help you gain confidence and help you plan your studies
Make sure you revise what you have learned frequently because it will help you remember it clearly for a longer period of time
Group study can be quite beneficial for you as you can learn so much from your friends. You can try exchanging knowledge and discuss on various topics
The results of the last exam will help you in identifying where you need help. Try to figure that out so that you can look into it and fix it