1. Fix the syllabus, then the timetable

JEE Main covers Physics, Chemistry and Mathematics from the Class 11 and 12 NCERT syllabus. Before planning hours, write out every chapter in three columns — not started, done once, revised. Most aspirants lose time because they re-study strong chapters and avoid weak ones. A visible chapter tracker removes that bias.

2. A weekly structure that survives school

If you attend school plus coaching, plan around 3–4 focused hours on weekdays and 6–8 on weekends. A workable split:

2 new-concept slots per subject per week (theory + solved examples)
1 problem-solving session per subject (only unseen problems)
1 full revision slot on Saturday for the week's chapters
1 mock or part test on Sunday, followed by analysis the same day

3. Subject-specific approach

Physics: derive before you memorise. If you cannot reproduce the derivation for a formula, you will misapply it under time pressure. Mechanics and Electrodynamics repay depth the most.

Chemistry: Physical Chemistry is numerical practice, Inorganic is scheduled recall (NCERT lines matter), Organic is mechanism-based reasoning. Treat them as three different subjects with three different study methods.

Mathematics: speed comes from pattern exposure. Maintain a page of "standard tricks" per chapter and re-solve them weekly rather than solving hundreds of unrelated problems once.

4. Revision cycles beat re-reading

Revise each chapter at expanding intervals — roughly day 1, day 7, day 30, then before the exam. Each revision should be an active attempt: cover your notes and reconstruct the key results, then check. Passive re-reading feels productive and transfers very little to the exam hall.

5. The error log

After every mock, log each wrong question with one tag: concept gap, silly error, or time pressure. Concept gaps go back into the study plan; silly errors are fixed by changing how you write steps; time pressure is fixed by attempt-order strategy, not by studying more. Reviewing the error log before the next mock is the single highest-return habit in the last six months.

6. Last 30 days

Stop new chapters unless a topic is high-weightage and completely untouched. Move to previous-year papers under exact exam timing, one paper every alternate day, with a full analysis session in between. Sleep is part of the plan — accuracy collapses faster from fatigue than from missing one chapter.