May be you are repeating the same mistake....
Its time to identify the actual problem, to do this you will need following:
1. Your mentor (the person related to CA profession whom you trust most and who is capable of guiding on alll aspect of study).
2. Identify mistake in delivering content on answer sheet (best way is call your certified copies, and check where you are not awarded marks, and where you are not awarded as expected.) this classification will enable you to identify the teeth which you need to brush gentle.
at intermmediate level : dont bother about anything except you and your books
One thing I must say dont go for selective study, I heard Rajesh Tayal saying "knowing something about everything is far better than knowing evertything about something", adding be smart in investing time on topic of importance and less importance.