Hi

In the remaining days don't try to learn new topics. Better revise the ones which you've learnt. These following topics must be taken care of:

Physics - Heat & Thermodynamics, Magnetic effect of current & magnetism, Wave Motion, Current Electricity, Electrostatic, Simple Harmonic Motion, Wave Optics, Fluids

Chemistry -  Chemical Bonding, Biomolecules, Carboxylic Acid & its derivates,  Atomic Structure, P-block elements, Mole Concepts, Alkanes, Alkenes & Alkynes, Electrochemistry, Chemical Thermodynamics

Mathematics - Circles, Straight lines, Pair of straight lines, Vectors, Continuity & Differentiability

And solve questions from previous year. Stay calm and do well.

All the best.

Hope this helps.

Cheers!