Hi oishik2910,
Many a times if you are stuck at a particular point, you need to understand the exact pain area and then wrk towards it.
Try to drill down deep on each problem type:
SC: The questions test various concepts such as S-V agreement, modifiers, parallelism etc. Find out what troubles you.
CR: There might be certain types of questions that are troubling you. May be Assumption, may be conclusion, inference etc.
You need to find that out and then practice them
RC: This again can be drilled down into different types of questions and also different topics. See what questions and topics trouble you the most and then practice accordingly.
Quants: Again try to break the questions in topics such as Algebra, Number system (very important), Geometry, PnC etc.
As an addition, start preparing an
error log and keep a note of all the mistakes you made and the lessons you learnt from the problems. This will ensure you do not make the same mistake again.