try to solve more and more objective type question.never give importance to the outcome.try to rectify your mistakes.solve each question for more than 2 times.so must feel free to ask doubt.you must solve as many questions as possible.try to solve last 20 years question paper and rectify all your mistakes then and there itself.so this is the practice if you do then you easily clear your exam.

Considering you are done with your NCERT syllabus. Next step to do is to focus on sample papers and previous year papers and then start giving online mocks, this will help you to get to know about the exact exam pattern and along with that this will also teach you the time management skill which will be beneficial for your exam. After giving the mocks, check test analysis report properly and then work on your weak areas and try to avoid the same mistake in next tests.

Hope this helps!!!

Good Luck!!!