Seeking Advise on how to study for the next 20 days

Hi experts, I really need some help and guidance on how to improve my Verbal score in the next 3 weeks. I just got out of my GMAT exam (my 4th attempt) and failed to reach my goal of 710 plus yet again. I scored 650 (q49 V29). I felt I was doing well throughout the exam. Though I had to guess last 8...