GMAT in less than 1 week...

I have my GMAT in less than a week. I am not too confident about my preparations. Took the GMAT Prep 1 for the first time. Got a 700 (Q48, V38). This has got me worried - am looking for a score of at least 700...and if I get 700 in GMAT Prep, the chances of getting less than 700 on the real thing lo...