marks

stop dreaming and start working. This works best.

concepts clearty+practice

Be strong in basics and clear with the concepts. Don't refer books of multiple authors. Institute's Practice manual and one author book for reference should suffice.

Practice every subject(don't ignore theory papers, you need to pen down summaries for each chapter and that will help you to revise quickly even on the day of exam).

Keep writing mocks and answer previous year papers to test yourself and understand what your weak areas are. All the best.

PS: These are only my suggestions and I don't intend to mean that its the ideal plan for everyone.