Hi aidyn,
First off, since your GMAT is on Tuesday, you have to be careful about doing too much studying in these last couple of days. "Cramming" rarely leads to great results on Exams such as the GMAT - and we do not want you to 'burn out' before Test Day. Thus, you would be better served by doing some light practice/review (NO more CATs) and making sure that you get some extra rest - so that you can go into Test Day calm, clear-headed and ready to work.
Between your recent post and your 'updated' initial post, you're asking about a number of different subjects. At this point, you shouldn't be putting too much time/energy into any of them, but here are some ideas to consider:
1) There's no 'perfect timeline' for how long you should be studying for the GMAT. Some people need more time to hit their Goal Scores - and 4 months (or more) of study is NOT a "bad thing." You're interested in a Score that approximately 90% of Test Takers never achieve (regardless of how long they study), so the process to earn that Goal might require more time than you want it to.
2) You're not planning to apply until next year, but you seem to think that you only have 2 options at this point: keep the Score that you earn on Tuesday (and stop) or retake in 2 weeks (and then stop?). I understand that you want to be 'done' with studying, but you're remarkably close to your Goal Score right now, so limiting yourself to just 2 additional weeks (if needed) seems like an odd choice.
3) Of the 36 Verbal questions you'll face on Test Day, RC will probably represent about 13-14 of them (meaning MORE than 1/3 of the Verbal section), so YES - RC does matter a lot to your Verbal Scaled Score. Have you had a chance to review those RC questions that you got wrong on this CAT? How many of them were questions that you 'narrowed down to 2 choices - but then picked the wrong one'? In those situations, you were really close to getting the correct answer, but you didn't. So what little things did you do wrong? Defining those details can help you to avoid making similar mistakes in the future.
GMAT assassins aren't born, they're made,
Rich