Central Board Of Secondary Education [CBSE] — education system

Hello respected sir or mam. I am a class 10 student who is not able to focus on studies just because of too many portfolios, homework, assignments, projects, etc given in schools. Please help us we are students not machines. Parents, teachers and tution tutors expects from us good marks but we are not able to fulfill their expectations only because of loads of homework. Please save us, help us. Every human gets 24 hours a day, now a minimum sleep of 6 hours, then spending 6 hours in school, 3 hours for studying at tutions, then rest for doing homework. Now you tell us when to study and at what time.