What kind of student does the ACT "click" with?

<p>Hello, i'm a rising junior, and i am looking to be recruited to run at some of the ivies (yale or dartmouth probably). i have a 4.0 uw gpa in honors classes and ive been prepping for the SAT, but scored poorly on practice CR and writing sections i took at home.(580,550) this has gotten me pretty sad/irritated and has somewhat lowered my confidence :(
Maybe the ACT is the test for me? however i am not a a very quick tester, and i hear that would be a problem on the ACT. Any help with my situation, or advice is appreciated. (my goal is a 30 or 31+) what do you think?</p>