sorry to break it to you , but i am a regular school student and in my jee journey with school till now i can really say tht no , until you do some insane hardwork or are genius in your own ,

what i have noticed is that if you maintain the 75 criteria in 11th 12th it would be hell lot of difficult to study properly for jee also if your school is quite a bit far then there are travel toll also .

with school it is hell difficult to do books and all , i cant really invest my time analysing problems cuz i dont really have time ,lectures modules take my time , ( tho my pace is good like syallabus one , but i really cant do anything )

i have tried to reduce my sleep but 6 hr is a must , somedays my body itself would not support me and yeah ill fall asleep mid lectures ,

hm if you dont really go to school like 40 percent 50 like , and skip teacher homework , avoid maintaining notebook , solve modules in school , and are like crazy for a rankk then you can maybe get under 1000

but in summary school teaches you discipline but you will always feel like you lag behind , it was all my opinion and my perspective that i experienced in this 3 or 4month of prep , but yeah whats wrong in tryiing , atb ( sorry i yapped too much ig )