Sure! I also used the Manhattan guides. I found them to be really helpful, but I went through them very slowly. I probably spent about 4 months studying for the GMAT, around 5-10 hours a week. With the exception of a few days on verbal (like you, I found verbal to be much easier), that entire time was spent on math. I read each chapter of the
MGMAT books and slowly worked through each problem until I mastered it. On the problem sets from the official guide, I would time myself with about 1.5 min/question. As I went along, I starred each question where I had guessed the answer. Then I slowly reviewed each question I got wrong and each question I starred, trying to figure out where I had gone wrong and/or if there was an easier way to solve the problem (e.g. those number properties problems with a rule I had forgotten that would make the whole problem simpler). After I had reviewed, I would time myself again on the same set of problems. A few days before the test, I went back and did each problem set again and reviewed each problem set once more.
Some people on this forum would say that the key is to take a lot of practice tests. This wasn't the strategy I used. I took 3 in total, mostly to get my timing down. But the problem I found with practice tests is that it didn't address the "mastery" problem for me because the concepts are all mixed together. I found it much more helpful to work through several problems of the same type--the repetition built an intuitive understanding, which was crucial on my test date. On the actual test, I probably guessed on every other math question, but I think my guesses were more successful because I had that "intuitive" understanding.
Hopefully that is helpful! Some folks on this forum have also used an
error log. Similar concept with more intense tracking:
all-about-the-error-log-11754.htmlAs to being a teacher, I think this could actually help you. So many consultants/bankers apply that we have to take extra steps to differentiate ourselves. You already have a unique--but still accomplished--background, and I really think you could knock the GMAT out of the park if you just spent a few months more on quant catch-up!