Hi!
I chose a few sentences from your debrif:
mchhokar
....The first problem took me 7 minutes. It was difficult and first 10 questions were really time consuming. ... Last 4 questios were guesses because I ran out of time.
...
I wasted some of my energy in break thinking about one of the problems which took more time, that was not to be.
...
Panicked because of my bad expecttion of quant, I wasn't able to concentrate ... I ran out of time during last two questions and they were random guesses.
...
I did got a little tired in last 30 minutes and there was a period of 5-10 minutes when I was pushing my mind to get back to focus and reading critical reasoning/ sentece corrections again and again....
My 2 cents:
1) Time. You guessed 3+2=5 questions because you ran out of time. This is your potential 50 points at least. Work always with timer and you will feel when 2 min passes and you need to go to next question.
2) Concentration (thinking about past problem, panicked, pushing my mind to get back to focus). There is only one beast at the moment and you need to nail it down over 2 minutes. Exaggerate! It helps trick your mind and helps be focused. Think that this SC reveals the most important concept that you were looking for past 4 years.
I agree with BB, don't delay retake.