Hi, I'm sorry I'm just getting back to you now—I've been out sick.
In verbal i was having hard time understanding the arguments or passages, not that my English is bad but it was weird I cant explain. I couldn't focus enough.
When you went back afterwards to review, did you find it easier to understand at least some of it? If so, this is a really clear / common sign of stress and mental fatigue. When we're stressed out, we just don't process things as well as we normally do—and the more stressed out we are, the worse it is. Another really common sign is reading something and realizing that you have no idea what you just read and you have to read it again—reading it over and over.
Part of this is going to be giving yourself a *lot* of practice under test-like conditions. I *don't* want you taking full practice tests every day (or even every week), but you do need to practice the time pressure and decision-making, so that means doing small sets of questions under timed conditions. Do sets of 8 for Quant or DI and sets of 6 for Verbal (one RC passage with 3-4 questions and then 2-3 CR).
For RC, go back both to that test and any other recent RC you've done to see whether there are any common trends. Certain topics areas? (biological science? physics-y science? social science? business? historical / academic?) The style of writing (more abstract / big ideas vs. more concrete / lots of specific details to keep track of?) Anything else?
Then, go look for things you can read that are in that same style or topic area and are academic-level writing. Scientific American, Harvard Business Review, University of Chicago Magazine, MIT's OpenCourseWork (OCW) site. The first three sites can often be too high-level (pop-culture writing rather than academic), so look for things that are "meatier" / heavier. The final site (MIT) can range too light to too heavy, so just look for "mid-range" there. Find things that remind you of the GMAT in style and tone and then just read for 5 minutes. Then summarize out loud what you read—pretend you're having coffee with a friend and trying to give them a high-level summary of the main points made in whatever you just read. Then, do it again for another 5 minutes (more of the same article or a different article entirely). You're just getting your brain back into the habit of reading university-level / academic writing and engaging with the content in a critical way (that's a fancy way of saying: Make your brain think about and process what it's reading).
In terms of the problems you got right or wrong, what's even more important is *why* you got something wrong. The "why" tells you what you need to do in order to get better.
For example, you missed (at least) four CRs simply because you were rushing and had to guess. Try them again now—maybe you can actually do some or all of them if you have adequate time and aren't stressed? If so, the remedy isn't to try to get better at those four problems. It's to adjust things elsewhere in the section so that you're not rushing so much by the time you get to the end.
Ditto, on those math and DI problems. Were there others you missed due to careless mistakes, stress, rushing, etc?
Were there some you legitimately missed, but when you review them, you realize you can do them now?
Which ones are still baffling even when you look at them afterwards / don't have any time pressure?
How you treat those problems depends on that analysis. If something was due to a careless mistake, you need to figure out what the mistake was, why you made it, and what new habit you can implement to prevent that type of mistake in future. (And then you need to go practice that new habit until it's a habit!)
If you really don't know something but you think it makes sense now, you know you need to go study that area and practice more problems of the same type to help solidify what you just learned.
If something is still baffling even with review, that question goes on your "bail fast" list until the next practice test. Focus your time and energy on the things that are easier to learn first. After your next practice test, you can decide whether this thing is something you want to learn at that point.
Given that, go look at those questions again and tell me what you think your best opportunities are for improvement based on *why* you missed certain questions.