PSAT is the important first step toward your college. in my school, about 200 people took them, and even if you did bad, you know where to work on the SAT later. so is the same with Plan test, which is the pre for the ACT. and if you are a junior in high school, and you did super well on the PSAT, for example, you get 2290, then you may qualify for the National Merit Scholar! this means you are basically accepted by the Top Private Schools like the Ivy League.