What leads to lower score on actual than on practice?

Good question
I have been a target of this 2 times now . And no one is to blame except me. IMO, each of us can get a perfect 800 but the time required to get there will be different. It might take me 1 year to score high and someone else may be able go do it in 2 months.
In my case, lack of sleep, attempting to kill every question and yes pressure too made me dip to my lowest score ever on game Day.
I also took a practice test 24 hours before he real one and that drained me out. This test is more about strategy, timing, educated guessing etc than about content. Ofcourse content is imp too but i we are unable to apply it correctly then there's no use of learning the content

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