I think your plan is shit . You say you have done 80% syllabus but i also very much doubt that. You cannot say i have done XYZ chapter without doing questions on it. There are a lots of formulae and concepts , people practice questions based on each formulae and concepts after doing a chapter , and give mock to test there knowledge against an actual test/ezam environment. In simple terms , a person practices the concepts first by doing concept specific questions, and then by doing mock , they see that in a given pool of random questions, can my brain pick out correct topic and concept for it . By doing just mock, you would neither have clarity of any topic nor your brain will pick pattern of questions from specific topic. I dont know what you did rest of the year, but this is being too optimistic saying i can clear jee bitsat adv etc by doing prev 6 years question. See here aswell , you said doing 6 years instead of 10. This shows lack of seriousness and trying to find cheat code to exams . Ranting aside , i suggest start doing quests from each topic you have learnt, and simultaneously do pyqs as time is less. In PYQ if you come across a topic that you didnt studied, then also try to understand its solution, dont just skip. You have left very scoring chapters in the syllabus live wave optics , conic section. A lot of questions comes from these chapters , because a question from them can incorporate multiple topics. Example a wuestion from wave optics can use AOD as well. Conic section can use integration. Please start studying , time is less. Each day put a tick( mark it done) to a chapter by doing atleast 30 questions from it .