Hi everybody! After 2,5 month preparation I scored 550 (Q50, V23) in Kaplan test. May be not bad for me, because 3 months ago i didn't understand verbal questions at all...

But I hoped for at least 600.
It seems to me, that Kaplan's question (both Q and V) are more complicated than OG's. What do you, guys think about it?
And the second question is about preparation srtrategy. RC is the most difficult for me. I need a lot of time to understand the text. And in spite of this i ask wrong more than 50% of RC questions. Could you give me any advice, how to improve my reading in a short time?
I have only 1,5 month for preparation. And I need the score >=680 (Q>=50, V>=35). Is it real?
PS i'm not native