Hi Steven.
One key thing to keep in mind is that your abilities are certainly not fixed. So, for instance, even though you aren't a native speaker of English, you can continue to develop your verbal skills and score quite high on the Verbal section of the test. In fact, I've seen people with rather weak English skills score in the upper 40s on GMAT Verbal by doing things like learning to execute well and do whatever it takes to get GMAT Verbal questions correct.
Another useful idea is that high GMAT scores are usually preceded by high practice accuracies. So, to score higher on GMAT Quant, seek to achieve high accuracy on practice sets in one GMAT Quant topic after another, and it helps to first achieve high accuracy untimed and then move on to practicing timed.
Nice work so far. Now, you can just continue to strengthen one topic at a time over the next two weeks to continue to increase your expected score.
For some additional tips you can use to achieve your goal, see this post, which is written with the Focus Edition in mind but most of which applies to both versions of the GMAT.
[url=https://martymurraycoaching.com/how-to-score-705-on-the-gmat-focus-edition/]How to Score 705+ on the GMAT Focus Edition[/url