Hi all!
I will be having my first test attempt in roughly 3 weeks from this date and have been studying for roughly a year. Generally, I'm able to study for 1-3 hours on most weekdays and 6-7 hours on weekends (realistically incl goofing around on my phone

). My target score is >700. I have a background in software engineering.
I've worked through the OG books TWICE (I own a copy of both the 2022 and 2020 editions) and took both of the free mock exams, scoring 680 and 740 respectively. I also had taken a GMAT prep class at a local university. Also took some of the mock tests from the old GMATPrep CAT app probably 6 times, with scores ranging from 660 to 730.
My last official practice test result was 740 with Q47 (57 percentile) and V46 (99 percentile). Granted, there were some repeated questions that I had seen in my earlier tests and in the books so the scores, especially verbal, may be biased. I personally think that I need to work a bit more on the quants since I am still prone to make small, silly mistakes esp on data sufficiency and mental arithmetics, ie I'm so used to using calculators I have trouble doing fast calculations in my head.
Now that I've pretty much exhausted all the basic materials, what would be the best course forward for the next weeks? I tried to re-run the OGs and practice exams this week but I'm seeing more and more repeated questions that they're getting more memorized. Are the other sources (eg Kaplan) worth studying in 3 weeks? Or Maybe I should purchase the Advanced Question Bank and the 3 & 4 exam sets?
Thank you!