Hi DarkHorse2019,
In a prior post, you described how you had studied for 6 months and scored 540/Q44/V21. That V21 means that you lost significant points in all 3 major Verbal categories (RC, SC and CR) - and you'll clearly have to make some significant improvements to how you handle the entire Verbal section (and the Quant section) to earn a 750 overall Score. While it's understandable that you might want to restart your studies with a book that you previously studied with, using that book did not lead you to a great outcome. Are you planning to use that book in a different way (relative to how you studied before)? In the broader sense, you will likely have to make some big changes to your study routine - and that will likely include using new study materials and focusing on Quant and Verbal Tactics during this next phase of your studies.
GMAT assassins aren't born, they're made,
Rich