Hi Rish52,
To start, can you confirm what your Overall GMAT Score was on that first practice CAT (and are the Q25/V44 that you reported the Scaled Scores or the Percentiles on that CAT?)?
Before I can offer you the specific advice that you’re looking for, it would help if you could provide a bit more information on your timeline and your goals:
1) What study materials do you currently have access to?
2) When are you planning to take the GMAT?
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