Hi lostboy,
Assuming that you have an experienced GMAT tutor, he or she should be able to help assess your weaknesses and make you a better test-taker overall. I guess the more important question is, do you feel that you have been improving since you started working with your tutor?
In addition to working with a tutor, you want to ensure that you use thorough prep materials to improve your GMAT skills in between your sessions. What resources are you currently using for your prep? Also, what is your GMAT score goal?
Lastly, you may find it helpful to read this article about
how to score a 700+ on the GMAT.