Guys,
It has been 4 years since I joined GMAT club. Studied on and off for GMAT for 4 years. Gave GMAT once and scored 480 Q 33 V 21. Tried all strategies not one. Wasted a lot of time in these 4 years also. Now I have made my mind to give a shot to GMAT finally. I have decided to leave my job from 30th November and to prepare for GMAT for almost 3 to 4 months full time. I hope I will get all the help from this community to crack GMAT. My weak areas are RC and DS mostly but rest of the topics are also not in good shape. Please suggest some strategies topic wise if possible. Most of the people reacts negatively when tell them my plan to leave a good job and I always tries motivate myself. But its not easy to get away from such negativity without getting affected. So some motivation is also required

. Please suggest how to start, about routines,
error log etc. Targeting top B schools such as HBS , IIM A, ISB, Kellogg, INSEAD etc and having 9 years of experience in a reputed company and B.Tech. Target Score 750+. I hope to have your great advice soon.
Thank you
QZ