Hi,

Hope you are doing well. It is great to see you that you are starting so early. So best wishes for you.

At first, you should complete your 10th. Then start by your school's 11th. Build your concept of every subject thoroughly. Then practice numericals and conceptual questions from different standard books as well as , subject wise previous year questions of JEE papers. And I personally will suggest you to note the formulas in a notebook. Go through the formulas everyday, if possible. Then do the same with your 12th. Revise those concepts and for convenience make a schedule for that. After that, give subject wise test series and lastly give full length test series. All the best.

Hope this help