<p>You need to have more colleges on your list.
No unhooked applicant has “good chances” at HYPSMC or Columbia etc.</p>
<p>All my friends (all Asian males) had better academic credentials than yours but nobody made to HYPSMC. Yes, nobody. Pursue USAMO and “improve ECs” and make sure to write great essays. Then, hope for the best.</p>
<p>33 is not bad but try to improve your ACT or try SAT.
Your SAT IIs are fine. Maintain good GPA during your junior year (most important year).</p>
<p>Go visit schools but HYPSMC do not care about school visit.
NW, Wash U and LACs do care about college visits.</p>