Hi Densetsu,
To start, when you say that you scored 38 in Verbal, do you mean a Scaled Score of 38 or the 38th percentile? Those results mean very different things. If you earned a Scaled Score of 38, then you did really well in that section and you don't really have a big "weak area"; if you scored the 38th percentile, then you're likely losing serious points in all 3 Verbal categories (SC, RC and CR).
On average, CR questions should take about 2 minutes to solve, but that does NOT mean that you should answer all of those questions in 2 minutes or less. Certain CR prompts will require more time and effort (up to 2.5 minutes or more of disciplined reading and work). If you're just now practicing new CR tactics, then it's unlikely that you would master those Tactics and use them in the most efficient way possible (with just 2 days of practice).
Before I can offer you the specific advice that you're looking for, I'd like to know more about your studies overall and timeline/goals:
1) How long have you studied?
2) What materials have you used?
3) How have you scored on each of your CATs (including the Quant and Verbal Scaled Scores)?
4) What is your goal score?
5) When are you planning to take the GMAT?
6) When are you planning to apply to Business School?
GMAT assassins aren't born, they're made,
Rich