How should I improve?

<p>I am currently a freshman at a preppy all-male high school. (I attended public school prior). I competed in the National History Bee in 8th Grade have had great grades, currently making straight A's (STEM track). I'm on the Water Polo Team, Wrestling Team, and Rugby Team. I participate in It's Academic and our school's Asian Studies club. What more do I need to do to get accepted by UPenn or other Ivy League Schools?</p>