You're definitely made some good headway in your goal.
Given you have multiple occasions of not finishing the test (unanswered problems), this leads me to believe you have two main hindrances:
Unable to approach the problems in a way to finish the test
Lack of timing strategies
If I'm correct, addressing the first issue is more important than the second. If you are deficient in material, identify what your weakest sections are and select materials to best address this. Use our book review thread:best-gmat-books-118706.html
Also, are you keeping an error log
? Read the error log
thread if you're not. The error log
is KEY to overcoming certain obstacles as the GMAT is an adaptive test and as such, WILL stratify you on any weaknesses. The error log
helps you identify the WHY aspect of getting problems incorrect.
Lastly, work on timing to make sure your averages are on point to finish the test. Read the timing strategy thread:timing-strategies-on-the-gmat-80176.html
Best of luck,
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