Here's one perspective from which you can think about the GMAT.
Yes, the GMAT is pretty intimidating -- all kinds of concepts and reasoning brain teasers, etc..
But if you think about it - there's only so many types of ways that GMAT can test you on the same thing. There are somethings --- for example, the calculation of standard deviation, and other complex formulas -- that will definitely not be tested. The concept may be tested, but the calculation will not be tested. So if you hone in on the questions from the
OG and GMATPrep -- you'll get a sense of what you might see on the actual test.
It's OK if you get many questions wrong - but the key is to learn from your mistakes. If you can learn from each mistake you make --- even if you initially get every question in the book wrong---as long as you learn from you, you should be able to eventually get everything correct.
Put yourself to the test -- keep asking yourself what you could have done differently to get the correct answer. Is there a different part of the question you could have focused on to save time? Is there a misreading on your part of exactly what the question is? If the question asks you for what 20% of x is ---and you do all the fancy math to solve for x----well, the answer is NOT x! ---it's 20% of x -- so don't fall for those kinds of traps. Learn from it -- and next time --- before you choose your final answer, make sure you are actually answering exactly what the question is asking you about.
So with this philosophy that there are only so many types of ways the GMAT can test you on ---as long as you keep learning from your mistakes -- you should eventually be able to master every GMAT question. From there, it's about repeating the process in a timed, pressured environment.
Only after you review your mistakes should you consider taking another practice test. When you do, try this one:
https://www.gmatpill.com/gmat-practice-t ... ctice-testAnd if you need assistance with the
OG SC questions - take a look at our video solutions here:
https://www.gmatpill.com/official-guide