OMG OMG!! PSAT ON WENSDAY!! any tips how to study! is urgent!?

so my bumb school, decided to give out the psat handbook with a practice test in it yesterday. they are suppose to give us that weeks ago!! so im her panicking since i don't know how to study for it, and this is my first time taking it, and im a sopre in high school. i REALLY want to get a great score and get a scholarship since i REALLY want to go to nyu, since they have a really good program of accounting/finance.