From the sounds of your post, it appears that you are just starting out on your GMAT journey. So if you haven't done so already, I suggest that you first
familiarize yourself with the GMAT exam and then take an
MBA.com practice exam. The results of that exam will give you a good idea of what to expect on the GMAT, a baseline GMAT score, and also an idea of whether you need help in both GMAT quant and verbal.
In regards to GMAT verbal, concentrate on learning one section at a time, reading comprehension, sentence correction, or critical reasoning. Have you been able to study in this way?
For example, when learning about critical reasoning, attempt to master all aspects of critical reasoning before moving on to another section: i.e. master the full range of critical reasoning question types. Follow up your learning with focused critical reasoning practice, so you can determine your specific weaknesses within each topic. For example, if you continually have trouble with strengthening arguments based on scientific evidence, you will want to identify and overcome that difficulty. You should follow a similar routine for sentence correction and reading comprehension.
Also, to help improve your reading comprehension, I recommend reading publications such as the Economist, the New Yorker, Scientific American, or the Smithsonian so you can get used to reading and analyzing long, sophisticated passages that are well written.
To master sentence correction, you must become proficient in the use of grammar rules (e.g. parallelism, subject-verb agreement, comparisons, pronouns, etc.) and accepted English usage. Concentrate on one topic at a time, such as modification, and practice with as many modification questions as you can find. Only after you feel confident with modification should you move to the next topic. In addition to your dedicated study, notice grammar and usage in your everyday life. When you read emails, articles, or even blog posts, pay attention to sentence structure, subject-verb agreement, the use of pronouns, and even punctuation. Use proper grammar in your everyday writing as well. Have you put parallel ideas into parallel constructions? Do all of your pronouns agree with their antecedents?? The more you reinforce your study with related activity outside of your study, the greater the likelihood you will master the topics, and have fun doing so!
Also, instead of using a book for your GMAT prep, I suggest using a self-study course. In comparison to GMAT prep books, 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. By being able to track your progress, you will remain more engaged, and you'll be able to forecast when you are ready to take your real GMAT. If you would like to learn more about what online resources are available, check out the verified course reviews on Beat The GMAT.
Feel free to reach out with any further questions. Good luck!!
