Hi velhogaga,
Based on your first two GMAT scores, it's clear that you need to go back to the basics. I'm curious to know more about why you're struggling with Quant, but I think it's important for you to consider reviewing basic concepts for both Quant and Verbal. I'm also curious about the following:
-How much time did you devote to studying before each of your attempts at the GMAT?
-How often were you able to dive into GMAT Tutor?
-Have you taken any practice exams? If so, what were your practice exam scores?
If you've taken a couple practice exams, go back and analyze where you ran into trouble. You'll notice patterns in your test taking after you've gone through a couple FULL-length practice exams, which will help you narrow your study plan and focus on the areas you're struggling with most.
However, I'd also stress that you should take a good amount of time before you attempt the GMAT again to review some fundamentals. [Khan Academy offers a number of online classes that will help you improve in areas that you're not quite grasping. Check them out here:
https://www.khanacademy.org/. Reviewing basics will also allow you to move on to focusing more on test taking strategies.
Best,
Rich