Poor test day peformance?

<p>On the recent March SAT, I scored an 1810! 610 CR 630 W Essay:9 570 Math (Composite: 1810) .On practice tests, I’ve scored high 1900s to 2000s. I usually got around 700 each for reading+writing and 600 for math. I don’t understand what happened! I took a couple of tests the week before my test and I did so much better on them. I just cant do it on test day and I don’t know why. My proctor cut us short on time and gave us only one break… so could it be fatigue? Lack of preparation? Stupid mistakes? I honestly have no idea. I’m just fearful that when I retake the SAT, I’ll continue to make stupid mistakes and misread questions. How can I become a better test taker? Any sort of help is deeply appreciated. thanks guys!!! </p>