More than the number of hours invested in studies, be it any subject, what’s more important is the time management. You choose the specific subjects in eleventh and twelfth standard in school and those who choose Science often have to give extra hours to the preparation of the exams like JEE, IIT, NEET, and PMT.
After school and coaching, students don’t get enough time for self-studies which is the inevitable part of education. Many children often skip school to complete their coaching homework and to study for school exams and tests which is a consequence of poor planning and the adverse effects of this can be numerous. Hence what you need to have is a proper time management chart which can help you with your school, coaching, self-study, and homework.
So after 7 hours of school, and at least 4 hours of coaching you are left with 13 hours in a day. Excluding 10-11 hours of your sleep and other activities from it, you are only left with 2-3 hours which you can utilize for your self-studies.
In weekends, it is advised to give some time to recreational activities to ensure the overall development and to give you a break. Apart from these recreational activities, weekend is the perfect time for the revision of whatever you have studies in the whole week. If you have skipped something from your study schedule due to lack of time, which can also be compensated by spending extra hours on studies during weekend.
The most important thing is the balance which you need to create between the fun you have and the studies you need to do. Also, you should not forget to take regular short breaks in-between your long study hours.