Has anybody taken the TEAS test (for Nursing) recently?

im doing my TEAS test this Tuesday and im really freaking out.. if i dont do great on this test my entire life will be ruined.. my school offers the TEAS ONLY once every SIX month to each applicant!!!! i have to score 70 percentile or higher to have a good chance in being accepted into the program... I'v heard from some students that the science portion of the test is mostly on rocks and Earth science! i've never in my entire life taken a class of earth science!! do i really have to study rocks and mountains to pass the science section? does anybody know if version 5 of the TEAS is harder or easier than the previous version? any tips or info will be greatly appreciated!