Hi shan324002,
To start, you have to be careful about assuming that working through 100s of practice questions of a particular type is a proper 'substitute' for learning the patterns behind that question type. In another post, you noted that your Score Goal was 750+, and to earn the type of score, you will need to learn the patterns of how CR prompts are written as well as learn and practice the proper Tactics to answer those questions. If "your way" of approaching CRs leads you to develop 'bad habits', then a large number of practice questions will simply lead you to reinforce those bad habits (meaning that you would end up getting 'stuck' at a particular score level.
Since your initial post was almost 4 weeks ago, I'd like to know a bit more about how you've been studying during that time and your goals:
1) What study materials have you been using?
2) Have you taken any additional practice CATs/mocks? If you did, then how did you score?
3) When are you planning to apply to Business School and what Schools are you planning to apply to?
GMAT assassins aren't born, they're made,
Rich