Thank you everyone!

Thanks! I'm American and am studying engineering in the U.S.

In order to study, I went to the GMAT Question Directory by Topic & Difficulty pages and did exclusively 700 level verbal problems. I didn't use any other resources to study, but have a strong background in math, and I read often. I tailored the number of problems I completed to match where I felt my weaknesses were. I exported my error log to Excel and so I can see a lot of cool data that encapsulates my studying performance.

Number of Problems I Did while Studying:
Reading Comprehension (RC) - 425
Sentence Correction (SC) - 269
Critical Reasoning (CR) - 157

To be fair, within the first week I had increased by score in practice tests from 700 to 760, so I started with a strong baseline performance. I also definitely feel like I did much better than I expected on the verbal section (my highest score on practice tests was V44), but I under-performed in quant (was consistently scoring 50s and even a 51 in practice tests).

However, my key takeaway is that the best way to study is to do lots of hard problems, and anytime you get a problem wrong, fully internalize why you got it wrong. Think of yourself as a Machine Learning algorithm that's being "trained" and "calibrated". After ~1000 questions, you really start to get an intuitive understanding of what the answer choice should be. I'm happy to answer any other questions