Great, so we don't need to worry about either IR or essay.
You have some timing issues (even if that didn't happen on the real test), so read these:
http://www.manhattangmat.com/blog/index ... to-win-it/http://www.manhattangmat.com/blog/index ... nt-part-1/Note: the second article is a 2-parter; make sure to read both halves.
Next, on your data... too much data actually. I don't want to know how you did on all 6 tests. I want to know how you did on the most recent 2 or possibly 3 tests - because that's where your skills are now. :)
Also, you told me the overall data but not how you're doing on the different sub-types - Find assumption, strengthen, weaken, inference / draw a conclusion, etc. Are you struggling equally with all of them? Or are some easier / harder for you than others?
Continue with Ron's videos. Here are some additional CR resources:
Overall process:
http://www.manhattangmat.com/blog/index ... g-problem/4 main question types (concentrate on the ones that are giving you the most trouble):
Inference / Draw a Conclusion:
http://www.manhattangmat.com/blog/index ... e-Problem/Find Assumption:
http://www.manhattangmat.com/blog/index ... -problems/Weaken:
http://www.manhattangmat.com/blog/index ... n-problem/Strengthen:
http://www.manhattangmat.com/blog/index ... n-problem/On the Quantitative section, I let go the questions that I obviously dont know. But on the Verbal section I find it more difficult, I feel that there is little room for mistake there, and I can not let go that easily.
You can (and will) get many questions wrong on both sections. Read that In It To Win It article (linked above). You need to convince yourself that you are actually expecting to get lots of questions wrong and the real strategy there is to recognize the too-hard ones faster so that you can let them go without losing time.
RC reading:
http://www.manhattangmat.com/blog/index ... p-passage/http://www.manhattangmat.com/blog/index ... -passages/But now I am worry that I have already worked on most of the material available (official guides 12-13, verbal review, GMATPREP, MGMAT CAT and other materials).
But you haven't actually learned everything that you needed to learn from those materials. It doesn't matter whether you already know the answer to something. Most of your learning comes AFTER you finish trying a problem and AFTER you see the answer. Read the "how to study" section here:
http://www.manhattangmat.com/blog/index ... -the-gmat/I know that the most important thing, is to understand the logic behind the questions, and try to identify if a similar reasoning appears on a different question. Why something is right and why the wrong answers are wrong.
Yes, that's a good start - but it's only a start. On verbal, you also need to understand why the right answer looks wrong, and why the wrong answer looks good! That's where the traps actually lie. If you learn how the questions "get" you, you'll be learning how not to make the same mistakes in future.
Re: your last question about timing, I address that in my time management article (linked at top).