Question

Can somebody tell me how to stay focused for the exams preparation

Answer 1

Give yourself enough time to study. Don't leave it until the last minute. While some students do seem to thrive on last-minute cramming, it's widely accepted that (for most of us) this is not the best way to approach an exam. Write down how many exams you have and the days on which you have to sit them.

Answer 2

I have your answer, above