Assuming you are done with your syllabus and now you will be focusing on revision so you can consider below points -

Practicing previous question papers: It is always a good idea to go through previous years papers for it gives you a detailed idea of the type of questions frequently asked and also the level of difficulty.

Know your strengths and weaknesses: Your preparation is strictly governed by self-analysis. If you fail to find loopholes in your concepts or shy away from revisiting your mistakes, it is not going to do you any good.

Study within a schedule: Try to absolutely stick to your schedule and never procrastinate.
Revision notes: Lastly, make proper notes of concepts that require regular revision.

Remembering your syllabus: Keep a tab on the portion you have covered. This improves your preparation and helps you cover all the topics quickly.

Hope this helps!!!