How to take 330+ preparation in 2 months?

Hello, I am an full time intern at a large conglomerate and aiming to take preparation from July 7th to September 7th, only 2 months. To compensate my CGPA, I need to attain a score more than 330+

  • I have planned to study quant form Prepswift and vocabs from Gregmat as I am doing internship like a regular office hour. As my background is engineering, I believe I can catch the quant part easily and fast.
  • As for the Verbal, I need to build a strong base so I am aiming to do it as like the 2 month plan.

Any good suggest Greg on how to achieve this high score within such a short time??

I can dedicate myself for 2 hours during office days and 6 hours in weekends easily. also, is it enough? Or do I need to invest more??