Your short answer suggests that you're just spending a lot of time "studying", without really analyzing what that means. In order to make progress at the GMAT, we need to have a clear idea of (1) what it is we're trying to achieve and (2) how we're going to get there. Under (1) you could include: a knowledge of the basic content of the test (such as terminology), core Math and Verbal skills (such as solving equations), understanding of strategies (such as Smart Numbers, the Negation Test, and the Yellow Pad Technique), familiarity with question types (can you list all the CR question categories?), an ability to manage time by recognizing problems and making appropriate decisions. Under (2), keeping things active and creative is important, so you might list: doing drills from the strategy guides, making timed sets of Official Guide problems, working topic by topic, making cheat sheets, making flash cards, writing mind-maps, finding multiple strategies for solving the same problem (especially on quant), keeping a log of problems you get wrong, going back to redo problems, taking (and reviewing) practice tests, and making up your own problems. In all honesty, does this match your approach?
In my experience, the biggest barrier students face when studying for the GMAT is not a level of intelligence, or even a level of commitment, but the lack of the skill to
really learn from their mistakes. That's probably the weak link in your approach. I would suggest that you check out some of Stacey's blogs:
https://www.manhattanprep.com/gmat/arti ... roblem.cfm You might also benefit from a couple of hours of individual tuition: having an instructor analyze your tests and show you how to really study a problem could speed things up considerably.