Within a week or so of test day it's pretty difficult for anyone who has studied conscientiously up to that point to "get smarter", so pretty soon you should focus your energy towards minimizing silly mistakes and poor interpretation of questions so that you get full credit for everything you do already do well. To do that, revisit your recent practice tests and/or do some timed drills with practice questions and track those mistakes that you make. Do they tend to come on certain concepts or question types? Can you put a "why" reason onto them, such as "misinterpreted the conclusion of a CR argument" or "forgot to consider 0 in a DS problem"? Even something like "wrote down 4 but it looked like a 7" can be instructional so that you can avoid that mistake in the future. If you find that the same type of systematic mistake occurs more than once, it's probably worth jotting down a reminder to yourself on top of your noteboard on test day so that you can look at it as a quick reminder to double-check for that mistake. For example, my quick reference checklist for the quant section was:
Positive (don't assume that a variable is positive)
Integer (don't assume that a variable is an integer)
? (make sure to answer the right question and not just submit the last number that resulted from your calculations)
Sufficient (if a DS statement gives you the definitive answer "NO", that's still sufficient so don't eliminate that answer choice)
0 (remember to consider that a variable could equal 0, particularly on DS)
Because I knew that those mistakes were pretty easy to make, I had that checklist handy and caught at least one mistake early on.
Hope this helps!
Best of luck,
The Veritas Prep Team