Hi IpshitaSaha,
If you're not planning to apply until Round 2, then you have plenty of time to continue studying and improving. This is important, since there's a decent chance that you'll need more time than you've allotted.
Since you will need to focus on your Quant studies for the time being, it certainly makes sense for you to find a GMAT Course that would cater to those needs. When it comes to studying for the GMAT, there are a variety of different options. Most GMAT Companies offer some type of free materials (practice problems, Trial Accounts, videos, etc.) that you can use to 'test out' a product before you buy it. We have a variety of those resources at our website (
www.empowergmat.com). I suggest that you take advantage of all of them then choose the one that best matches your personality, timeline and budget.
If you have any additional questions, then just let me know.
GMAT assassins aren't born, they're made,
Rich