I'm sorry that you had a disappointing test experience. If you were answering easily on verbal and can't remember now what was happening...then, yes, you were experiencing mental fatigue and that would have pulled down your score.
You didn't do the essay in practice, so the real test was half an hour longer. You were still working on verbal when you were used to being done with the test.
You also know the real test counts, so that adds to stress - and stress affects your mental stamina.
And then you had that unfortunate experience during the essay, adding serious stress - and again that affects your mental stamina.
That combination could cause you to become fatigued enough during the test that you just feel like you're ready for it to be over and you're not working / concentrating as carefully as you normally do. Then, you make careless mistakes without realizing it and your score suffers.
I took 5 Mock exams each for a week before my final exam
Does this mean that, in the 7 days before the exam, you took 5 practice tests? That would also contribute pretty significantly to mental fatigue on test day. Our official recommendation is to take your final practice test 1 week before the real test (and no closer than 5 days before the real test).
So I think at least part of the problem is pretty likely due to mental fatigue. Going into the next test, there are several things to do to improve mental stamina:
1) All practice tests must be taken under 100% offiical conditions, including all sections, length of breaks, etc.
2) Twice a week, plan stamina-building study sessions. Plan out work that you think would take about 3 hours. Then GO for 1 hour without stopping. No phone, no email, no food, nothing. Take a 15-min break, then go again for 1 more hour without stopping.
Then stop. (The 3 hours' worth of work is just in case you finish faster than you think you will. I don't want you spending any time thinking about what to do next. That's a mental break. You only get the one break halfway through.
Also, don't do this for 4 hours straight. You're still trying to learn, which requires making new memories. If you're too tired out, you'll make bad memories and your study time will be wasted.
3) For some study sessions, study quant first and then verbal, or study verbal after a long day at work - so that you're practicing having to work on verbal while mentally fatigued. How are you going to be very systematic in your process for each question type so that you don't lose that process when you're tired?
4) How can you save mental energy during the earlier sections? You are almost certainly spending time and mental energy on some IR and quant problems that are just not worth your time. Learn how (and when) to cut those off so that you save more energy for verbal.
This can help too:
https://www.manhattanprep.com/gmat/blog ... you-crazy/But part of it is literally just NOT trying certain IR or quant problems that are going to take too much energy.
There are also probably content areas that you could stand to improve. The GMATPrep tests unfortunately don't give you very much data to work with, so I'd recommend taking one of our practice tests and analyzing it so that we can understand your strengths and weaknesses better.
You may also want to order the Enhanced Score Report from your official test to see whether your verbal suffered across the board or whether only certain question types were problematic. Here's more info about what that report contains:
https://www.manhattanprep.com/gmat/blog ... re-report/If you decide to take one of our tests, first read these two articles:
http://tinyurl.com/executivereasoninghttp://tinyurl.com/2ndlevelofgmatThink about how what you've been doing does and doesn't match up with that and how you may need to change your approach accordingly.
Then, use the below to analyze your most recent MGMAT CATs (this should take you a minimum of 1 hour):
http://tinyurl.com/analyzeyourcatsBased on all of that, figure out your strengths and weaknesses as well as any ideas you have for what you think you should do. Then come back here and tell us; we'll tell you whether we agree and advise you further. (Note: do share an analysis with us, not just the raw data. Your analysis should include a discussion of your buckets - you'll understand what that means when you read the last article. Part of getting better is developing your ability to analyze your results - figure out what they mean and what you think you should do about them!)