Hi SarahIbrahim,
To start, a 560 is a solid 'baseline' CAT score (the average score on the Official GMAT hovers around 540-550 most years). Unfortunately, one month is not a lot of study time. Many Test Takers spend 3 months (or more) on their studies before they hit their 'peak' scores, so you might have to adjust your overall plans a bit:
1) What is your goal score?
2) When are you planning to apply to Business School?
3) Do you know which Schools you plan to apply to?
4) How much time can you commit to your studies during a typical week?
GMAT assassins aren't born, they're made,
Rich