I dont know if there is a dedicated thread to post debrief, so I am just creating a new topic.
It is going to be a long post so sit back :D
I decided to sit for GMAT in June...Registered for it on 19th June and chose 19 th Aug as my exam date. Started with OG and completed it in 6 days. I found out that I need serious practice for CR and SC. I have always been good with RC and Maths. Gathered a lot of info on which books to follow for respective topics. Finally, downloaded POWERSCORE CR and bought Manhattan SC. Started with SC first and I must admit that I couldn't understand half of the rules stated in that book. So switched over to CR. Soon I realised that what a brilliant CR book POWERSCORE CR is. Finally there was a topic I felt confident about. Till now I had made no notes. Then I came across GMATCLUB and was jus just exploring the site when I came across BUNNEL's posts. Out of nowhere I started practising maths questions. I fell in love with his math's knowledge. I tried to solve questions from his collection '700+ Questions' but could only get 50% of them right, and I used to think I was good at maths. I dont know for how many days I just practiced maths questions and came to my senses when I realized that my exam date is only 15 days away. I had not taken any practice test till now. So I downloaded GMATPREP and took 1 practice test. I scored 730 in it and this made me feel a bit confident. Then I started practising SC questions on this site and my accuracy started increasing gradually. Took another GMATPREP test and scored 740. By now I was feeling confident about my preparation. I knew I could achieve my target of 730 if I persevere for 10 more days. Finally started making notes so that I can refer to them during the last phase of my preperation. My gmat was now 4 days away. Next two days were sat and sun, so I had a lot of time. Took a leave from office for Monday. I bought the GMATPREP pack of 2 extra tests. Took first one on sunday and scored 750. Against the advise of a lot of my friends, I went to a club at night to keep myself calm. Woke up next morning and took the second test and scored even better this time - 770 . I was jsut blushing. Decided to study a bit for AWA as well and came across the brilliant template by chineseburn ( I hope I spelled his name correct ). Again Went to a bar for a couple of drinks. Next day was THE DAY. I reached my exam center 45 minutes early and the entire process was smooth.
First was the AWA section. I literally copied the above-mentioned template and just finished my analysis on time. Though I didnt get time to go through what I had written so it might have some grammatical mistakes. Next came the IR section and I didnt know that I was going to commit the biggest blunder of my life in this section. I spent 8 minutes on the first question itself. As a result I could just attempt 10 questions. I was devastated. I had decided not to take any breaks because I am used to sitting for long exams ( I have cleared CFA Level 3 and it is one hell of a long exam ) . But after such a shameful performance, I decided to utilise the first break. I just calmed myself down so that I dont screw up Maths and Verbal because of this blunder. Finally started with the Maths section. I found the initial questions to be quite simple but got stuck on a question yet again - question number 10. Wasted 4 minutes but atleast got the correct answer. Somewhere around question number 20, I found questions of high difficulty level. I was happy considering that I might be doing well. But then the questions in the end were too simple and I got worried that maybe I screwed up in the middle. Anyways finished the section 4 minutes earlier and utilised the second break as well because I had to use the washroom.
Verbal was never my strong area but I was confident about it after the prep tests. Started the section on a good note but this happiness was shortlived because I got one of the toughest RC I could imagine and wasted a lot of time. After that the questions kept on getting trickier and I was just mentally tired. I looked at the clock and got the biggest shock. Only 14 minutes were remaining and I was yet to answer 12 questions. I tried to spped up but questions kept on getting more difficult ( it was a good sign in one way ). Finally I had 4 minutes to go and 5 questions to answer. I could only answer 3 of them and could not attempt the last two ( second blunder of the day after IR ). I was just stunned and at the same time was angry with myself. But then came the magical numbers. And I could not believe that I managed to score 760( Q51 V41 ) after such a horrible performance.

I was just way too happy. My only concern is the low IR SCORE ( 6/10 , 70 percentile ).
ADVISE FOR GMAT TAKERS
1) Find out your own preparation strategy. Dont blindly follow someone else's strategy
2) practice a lot. That is the only way to get a hold of the imp concepts
3) follow Bunnel's posts religiously. He is the god of maths.
4) Manage your time effectively during the exam.
PS: I am still contemplating on whether to retake the gmat because of my IR score or not. If anyone can advise me on this, I will be more than gREATFUL.
All the best to all of you.

UPDATE : Got my AWA score yesterday. I scored 5.5. This clearly shows that the template I mentioned above is an excellent one. Though I could write only 2 paragraphs instead of 3 mentioned in the template, I still managed to get 5.5. So please definitely go through that template.