Major Weakness in GMAT CR - Any Advice?

NGMATK - It is funny, I wrote a fairly lengthy post on CR questions not too long ago, which I would encourage you to check out:

https://gmatclub.com/forum/weaken-and-strenghten-questions-304824.html#p2353966

As far as CR questions being the hardest to wrap your head around, I get it. I think most people studying for the GMAT™ probably feel the same way. (I know I did when I was introduced to the test.) Unless you also prepared for the LSAT and studied Logical Reasoning questions, as they are called there, then it does take some time to appreciate the chain of logic that separates correct answers from incorrect answers. You say you have tried MGMAT and even the CR Bible, but what about them rubbed you the wrong way? That is, have you actually employed the techniques that are taught and found them to be unhelpful, or have you resisted employing such methods and gotten mixed results? I ask because in my experience as a tutor--I stopped counting up the hours after a certain point--frustrated students tend not to progress because they want to cling to their own ways of doing things. The guides you have bought may not, in fact, be for you, but that does not mean that you cannot incorporate their teachings into something that does work for you. If you stick to a system, then you will be more likely to succeed. Three weeks is enough time to implement such a system and practice with it, fine-tune it, and make it your own.

Again, I would refer you to my earlier post, since that has more CR-specific advice. Good luck with your studies.

- Andrew