Hello, this is the first time I write on the forum although I used the gmatclub for preparing my gmat. Today I took the exam for the second time and got a 590 (Q43, V29)... my first attempt was almost 2 months ago in which I got 560 (Q39, V27)... not a great improvement

my target was 650+
I found the verbal really difficult, after my first GMAT I focused on practicing verbal but today I ended up with almost the same score. I have studied all
MGMAT books, the OG12, the OQuant and the OVerbal... before my first attempt, in my mock tests I got no more than 610 so my first score didn't surprise me but these last 2 months I studied a lot and my last tests had scores of 690-710
I am not a native speaker and I dont practice my english very frequently so the verbal part is really annoying for me. I have a month left to practice and take it for the 3rd time but I don't know how to improve in just a few weeks. What should I study? In the Verbal guide, I got 80% of the SC section correct but in the real exam, SC was harder. In the
MGMAT exams, SC questions were almost ever correct. For RC I am planning to read newspapers and also I got the RC99. For CR I practiced from OVerbal and some LSAT questions, that really helped me. In the last tests CR I made less mistakes that 2 months ago.
Quant is not really difficult for me, on the official guides I could answer about 90% of the questions correctly. In the GMATPrep I was scoring 48-50. Today I got stucked with 2 questions so that made me lose concentration and time. They were some of the first questions so maybe that is why I ended up with a 43
Any advise on how to improve my scores??? Are there less chances to get into a school if I apply on the 3rd round? since I would be submitting my app until January because of GMAT, now I'm not sure if I should wait until 2012 to apply
thanks in advance