I started with Q47 in MGMAT CATs when I began my prep for GMAT 5 months back. I am down to Q35 (but made a significant improvement in verbal). I realized that the difference was - previously when encountered with 700 level I knew definitely that I have to quit and focused on the concepts I knew. Now, that I am 5 months into the prep I am having a hard time to let go of a 700 level question and spending 4-5 min specially on DS questions and I usually get them right. Also, there are very subtle tricky rules that its impossible to know them all under time constraints.
How do I attain a "clarity of thought" and be able to attack new questions without spending too much actually solving? MY problem areas are number properties, geometry and divisibility problem. Any suggestions are much appreciated!