12th class is very important for your study.

It is a high time that you get serious for your studies.

You can start your preparation with the important chapters which carries more weightage in the exam. You can take help of your notes which you have prepared in at the time of classes.

It is very important to learn concepts to score good in your exam.

Solve previous year papers to understand the level of the questions. Sometimes, questions use to repeat in exam. So, it is good for your practice.

If you want you can join study group you can also consult to your teachers for advise.

All the best for your exam!!