From 470 to 530 to 640 (Q46)(V33) Need help getting to 700!!

I sat for my GMAT yesterday and was surprised to see a score of 640 with a Q46 and V33. This is the highest score that I have received to date in any of the mock/real exams. I took my last mock test a couple of days before the exam and only scored 620 with a Q42 and V33. I chose the Q,V, IR & AWA structure for the latest attempt.

I have been preparing for the GMAT since last year. The following were my official scores for all three attempts:

1. Sep-16 Total- 470 Q32 V22
2. Nov-16 Total- 530 Q36 V27
3. Jul-17 Total - 640 Q46 V33

Test Day Experience: July 17th, 2017

I took the test in the morning at 8.30. I was pretty chilled out the day before. Watched Game of Thrones and went to bed around 10.00 and got a good 8 hrs of sleep. Worked out before the exam. It took me a couple of questions to get started on Quant. I think i exhausted about 6 minutes on the first two quant questions. In hindsight, I should have completed some warmup questions before the exam to awaken the math neurons in my brain. In The verbal section, I found that SC was way harder than anything I had ever seen in OG or previous tests. Last few questions on Verbal were a guess as I was almost out of time.

Next Steps:
I plan to give it another shot in mid September in the hopes of scoring a 700. Is it possible to improve from a V33 to V39 or a V40 in the next 50 days?? I think if I can get to a V39 and keep my Quant score at bay I can touch the 700 mark.. To give you some background about myself. I am a non-native English speaker. Completed my B.Comm in Finance from a sub par university in Canada. I am currently working as Sr. Financial Analyst at one of the Big 3 Automakers. I am able to put in 2-3 hrs on weekdays and 14-15 hrs on the weekends for the next few weeks.


Materials used so far:
1. Manhattan Quant Books (Finished all the Quant guides except Geometry and also completed the Foundations of GMAT Math)
2. Empower GMAT quant - (OG question explanations by Rich are awesome!! He makes the math look so easy. Honestly, I would attribute the quant improvement from Q32 to Q46 to his course and his style of teaching. Thank you for that!!)
3. OG 2016 (Completed all the PS & DS questions in the OG twice. Finished SC, CR and RC once)
4. E-GMAT (Completed the E-GMAT SC course once last year. I did see some improvement in SC, But not what some other people have experienced. I am still at a 60% accuracy. Re-enrolled in E-GMAT SC course to go over the course again before the next attempt)
5. Power score CR Bible (I just bought it after the test yesterday. I plan to finish this in next 50 days)