You don't mention your goal score. What is it? It's hard for me to advise you when I don't know what you're trying to get.
Did you take your practice tests under 100% official conditions, including essays, length of breaks, time for sections, etc?
In general, your scoring level approximately 7 to 10 days before the real test is about what you should expect to get on the real test. (And that assumes you took the practice test under 100% official conditions,
including essays.) So if you want something more than what you're scoring now, or if you didn't take the test under official conditions, then you should probably postpone your test, yes.
(I'm guessing, because you're asking in the first place, that you want a higher score, which means you're likely going to decide to postpone. But let me know.)
Also generally speaking, you spend your time trying to improve your weaknesses until you get to about 10 to 14 days before the real test, at which point you start switching over to a comprehensive review. Your skills are what they are, your score level is what it is, and now you try to make sure that you review everything so that you can hit that same score on the real test.
I'm going to give you some reading to do and then you can decide whether you're ready to take it or whether you want to postpone (let us know what you decide).
Start with this:
http://www.manhattangmat.com/blog/index ... -the-gmat/Analyze your recent MGMAT CAT with this:
http://www.manhattangmat.com/blog/index ... ice-tests/You can share the above results with us if you want (note: we want to see your analysis of the data, not just the raw data itself!)
If you have timing problems:
http://www.manhattangmat.com/blog/index ... anagement/You mention careless errors; look at the careless errors section of this article:
http://www.manhattangmat.com/articles/error-log.cfmFor SC, start here:
http://www.manhattangmat.com/blog/index ... n-problem/And then here:
http://www.manhattangmat.com/articles/GMATprep-SC.cfmThen, obviously, you'll need to go back to the Strategy Guide to study the rules, improve your weaknesses, etc.
Okay - so let us know your goal score, whether you took those practice tests under 100% official conditions, and (if you like) your analysis of your last practice test based on the above article. If you do the latter, I can then direct you to some more specific resources based upon your strengths and weaknesses.
Save these two articles for later but remember what I said: you try to *improve* up until about 10-14 days before the real test. Then you accept your basic levels where they are and move to reviewing everything instead.
http://www.manhattangmat.com/blog/index ... game-plan/http://www.manhattangmat.com/blog/index ... game-plan/