Is it pass/fail? I figure if you fuck up on one test then you have several others to look forward to and improve. And each individual test could be more focused, so easier to study for. Just have a test at the end of every year from ~13-18 instead of one ultra-test that makes or breaks your entire existence. Sounds dystopian. And also completely detached form how reality works. Unless you're in the Olympics, no one cares how you perform once. They care about how you perform and will perform over months and years.