Hi oshinwaves,
Considering that you did just some basic review for 10 days, a 570 is a solid initial Score (the Average Score on the Official GMAT hovers around 550 most years). That having been said, many GMATers spend 3 months (or more) of consistent study time before they hit their 'peak' scores - and a 2nd Test Date on June 15th might not give you enough time to learn and hone all of the skills needed to score 700+. You don't have to decide on whether to reschedule or not just yet, but that's something you should keep in mind going forward.
Before I can offer you any additional advice for your studies, it would help if you could provide a bit more information on how you've been studying and your goals:
1) How many hours have you put in so far?
2) What study materials have you used?
3) Did you take any CATs/mocks? If you did, then how did you score (including the Quant and Verbal Scaled Scores for each)?
4) 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
Contact Rich at: [email protected]