Hi kreel11,
Since you have only about a week left until your GMAT, I don't think that you should make any significant changes to your study routine. Certainly, it couldn't hurt to take one more practice exam. Once you complete that practice exam, spend time reviewing your mistakes, so you can find and improve upon any weak areas in quant or verbal. Additionally, you could engage in some topical practice to find remaining weak areas. For example, practice Number Properties by answering 50 or more questions just from Number Properties: LCM, GCF, units digit patterns, divisibility, remainders, etc. As you do such practice, do a thorough analysis of each question that you don't get right. If you got a remainder question wrong, ask yourself why. Did you make a careless mistake? Did you not properly apply the remainder formula? Was there a concept you did not understand in the question? By carefully analyzing your mistakes, you will be able to efficiently fix your weaknesses and in turn improve your GMAT quant skills. Number Properties is just one example; follow this process for all quant and verbal topics.
Also, I wrote an article that you may find helpful that has some more advice regarding
how to treat the final week leading up to your GMAT as well as some tips for test day.
Let me know how things end up, and please reach out with any further questions. Good luck!