Utilize the time wisely - Do not be lazy. Don’t commit the blunder of neglecting your studies if you’ve got just a few months in your hands for the long list of subjects.
Ignore the distraction - Your mobile phone is the greatest distraction. Stay away from social media sites during your study hours.
Know the syllabus - The syllabus is the soul of a subject. Make sure you get an in-depth insight into it before you start preparing for it. You can divide chapters that are related to each other, and finally study them accordingly.
Be consistent with your timetable - Making a timetable is the best way to divide an equal amount of time for each subject, solving problems and previous questions, revision, etc.
Follow the NCERT Books - NCERT books are considered the Bible for qualifying for the CBSE Class 12 Board Exams. You can get a clear concept of the question pattern through the NCERT-designated textbooks.
Solve the previous years’ questions - Solving the previous year's questions provide you with a clear insight into the question format, marks distribution, and the significance of a topic.
Practice mock exams - Practicing mock exams will help you identify your flaws and strengths, the topics where you are looking at. You can practice the mock exams from previous years’ questions.
Clear all the doubts - Never hesitate to seek help from your mentors. It’s common thing to have difficulty understanding a subject, a chapter, or anything.