Hello,

Daily try to complete or cover some part of syllabus. Prefer the prescribed book by NTA then do daily practice of numericals and problems from all the 3 subjects. Its is highly needed to practice. If you aim for IIT or NIT then you have to study 18 hours a day and that too effectively. Not like if you one chapter today you will forget it tommorow. To remember keep some time for revision purpose which you have covered pastly and some hour for the comletion or covering the chapters. More you do practice you get good rank. Aim for high and practice according to it. Try to solve problems on daily basis. If you can't solve them try to solve by understanding the given answers. Then next day try them again by on your own. Don't try to remember the answer. Understand the approach.

Hope it helps!