620 to 710!!

I started preparing for GMAT in May of this year. I gave a free GMAT mock before starting just to know what my weak points were and what needed my attention the most. I scored 580 in that mock and started preparing. I started by watching various YouTube videos , solving questions and after 2 months gave another mock, this time an e-GMAT free Sigma-X mock test, and even after studying for 3hrs (avg.) daily I could only score a 620(Q47 V27).
Coming from an engineering background, I was always confident of my quant abilities. But even after reading several different books/watching several videos to prepare for the verbal section, I was not confident of my verbal abilities, especially my CR and RC abilities(RC being the weakest). I attended free webinars on SC, CR and RC sections organized by e-GMAT and was impressed by its approach to the verbal section. Finally, I decided to sign up for the course as I prepared.
Best part about e-GMAT in my opinion was the Personalized Study Plan (PSP) which helped me create and follow a very fruitful study plan. I straight away started with the verbal section and e-GMAT helped a lot in building my foundation for the Verbal section.
When I started preparing for RC with the e-GMAT modules, I was not very optimistic about the outcome because I have not read much books (and believe me if you are an avid reader you would do great in RC section), but based on the way I was taught to approach RC passages, types of questions , I started enjoying solving RC questions, which I used to avoid all the time, and reached at an 80% accuracy level from 55%.
After completing a particular section, it helped me solidify my concepts by giving tests known as cementing quizzes. Which really helped me know where I was lacking even after finishing a part, if I was stuck in any question I used to ask an expert and within 1-2 hours I used to get a reply.
Unfortunately due to some personal reasons, I was not able to give my GMAT within the duration of my subscription, but none the less, even after my subscription ended I got a reach-out mail from e-GMAT and they helped me by clearing my concerns, giving me tips on where I should focus more, and gave me a study plan for the remaining days till my exam.
All in all, thanks to e-GMAT, Payal Tandon Ma'am and Abha Mohan Ma'am I was able to score a 710(Q49 V37) on my first attempt.
First Sigma Mock: 620
Last Sigma Mock: 680
Official Mock 1: 580
Official Mock 2: 660
Official Mock 3: 720
GMAT Attempt 1: 710(Q49 and V37)
Total Preparation Time: 6 months, approx. 3 hours a day