I’m sorry to hear how things went with your GMAT, but I’m happy to help you get on the right path! While a tutor certainly could help, at this point, you may consider first adjusting your study routine, because regardless of whether you work with a tutor, you are going to need the best possible study materials for your self-study.
I see that you have studied mostly with prep books up to this point. While it is true that some test-takers use GMAT books to prepare for the exam, I’ve found that my students are more successful when they use a self-study course for their preparation. Self-study courses typically provide detailed study plans and have granular analytics, so you can easily track your progress as you move through the course. The ability to track your progress will keep you more engaged, and you’ll be able to more accurately forecast when you’re ready to take your real GMAT.
Given that your practice scores were never higher than 650, it’s likely that you never fully developed mastery of GMAT quant and verbal, and thus your score plateaued. Moving forward, consider a study routine that allows you to first build mastery of GMAT quant and verbal, and then do focused practice. For example, if you are learning about number properties, you should develop as much conceptual knowledge about number properties as possible. In other words, your goal will be to completely understand properties of factorials, perfect squares, quadratic patterns, LCM, GCF, units digit patterns, divisibility, and remainders, to name a few concepts. After carefully reviewing the conceptual underpinnings of how to answer number properties questions, you will want to practice by answering 50 or more questions just from number properties. As you do such practice, do a thorough analysis of each question that you don't get right. If you get a remainder question wrong, ask yourself why you got it wrong. Did you make a careless mistake? Did you not properly apply the remainder formula? Was there a concept you did not understand in the question? By carefully analyzing your mistakes, you will be able to efficiently fix your weaknesses and in turn improve your GMAT quant skills. Number properties is just one example; follow this process for all quant and verbal topics.
Let’s say you are reviewing Critical Reasoning. Be sure that you first learn the necessary concepts of CR questions and then practice a large number of Critical Reasoning questions: strengthen and weaken the argument, resolve the paradox, find the conclusion, must be true, etc. As you go through the questions, do a thorough analysis of each question that you don't get correct. If you missed a weaken question, ask yourself why you didn't get it right. Did you make a careless mistake? Did you not recognize what the question was asking? Did you skip over a key detail in an answer choice? Getting GMAT verbal questions right is a matter of what you know, what you see, and what you do. So, any time that you don't get one right, you can seek to identify what, if anything, you would have needed to know in order to get the right answer, what you had to see that you didn't see, and what you could have done differently to arrive at the correct answer.
When you do dozens of questions of the same type one after the other, you learn just what it takes to get questions of that type correct consistently. If you aren't getting close to 90 percent of the questions of a certain type correct, go back and seek to better understand how that type of question works, and then do more questions of that type until you get to at least around 90 percent accuracy in your training. If you get 100 percent of some sets correct, even better.
Each time you strengthen your understanding of a topic and your skill in answering questions of a particular type, you increase your odds of hitting your score goal. You know that there are types of questions that you are happy to see and types that you would rather not see, and types of questions that you take a long time to answer correctly. Learn to more effectively answer the types of questions that you would rather not see, and make them into your favorite types. Learn to correctly answer in two minutes or less questions that you currently take five minutes to answer. By finding, say, a dozen weaker quant areas and turning them into strong areas, you will make great progress toward hitting your quant score goal. If a dozen areas turn out not to be enough, strengthen some more areas.
So, work on accuracy and generally finding correct answers, work on specific weaker areas one by one to make them strong areas, and when you take a practice GMAT or the real thing, take all the time per question available to do your absolute best to get right answers consistently. The GMAT is essentially a game of seeing how many right answers you can get in the time allotted. Approach the test with that conception in mind, and focus intently on the question in front of you with one goal in mind: getting a CORRECT answer.
In order to follow the path described above, you may need some new verbal and quant materials, so take a look at the GMAT Club reviews for the [best quant](
https://gmatclub.com/reviews/highest-ra ... or-quant-4) and [verbal](
https://gmatclub.com/reviews/highest-ra ... -verbal-34]verbal courses).
You also may find it helpful to read my article for more information regarding
how to score a 700+ on the GMAT.
Feel free to reach out with questions.
Good luck!
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