Spending 7 hours daily from now is msut, such that you need to devote time for sectional mock exams daily. With intense preparation and dedication you can surely go way higher.

Make sure you relax and chill as well, go accordingly to the time table and give more time for mockexams.

Golden Tip:--

Analyse Mock exams to identify weak areas and devote timefor solved problems from the books on such topics, try to revise them regularly such that your weakness becomes your strength.

The cutoffs for top colleges emntioned below.

https://engineering.careers360.com/articles/jee-advanced-cutoff

Your target aim should be 300+ such that a minimum of 250 is what you can score with 20% error margin.

You have enough time to crack JEE Advanced to get admission in IITs.

You should make your own time table according to your comfort. So, that you can complete your syllabus on time and you get proper time for revision. You can include daily and weekly targets as well.

To score good marks make sure your basics are clear. So, that you can easily solve tricky questions. Make sure you complete your NCERT book first to make to build your fundamentals.

You should focus on the important topics which carries more weight-age in the exam to score good marks but make sure you complete your whole syllabus as you have enough time.

Below are the important topics which you should focus more but make sure you stick to the syllabus

Physics

-Mechanics - You will find many questions on JEE which are directly from mechanics. You should also cover elasticity.

-Electricity and magnetism - A lot of questions are asked from the applications of Coulomb’s law and Capacitance. There are quite a large number of standard formula in electrostatics and magneto-statics.

-Thermal physics

-Fluids and waves and sound - There are lot of questions from this topic mainly from Doppler Effect.

-Potentiometer-related experiments
-Optics
-Modern physics

Chemistry

-Mole Concept
- Thermodynamics and Thermo-chemistry

Mathematics

Coordinate Geometry (3-D)
Application of Derivatives
Functions
Integral Calculus
Matrix & Determinants
Probability
Trigonometry

Good Luck!!