<p>"Things you would have done differently etc."</p>
<p>I would've spent less time on CC, for starters. :-) [I'm only half-joking.]</p>
<p>I don't know. My approach to high school was, in retrospect, pretty solid; I tried my best to enjoy it. I was never a hardcore academic, but I studied and did my work because I was in love with what I was learning. </p>
<p>My best advice would be to avoid doing things for the sake of getting into a top college. If you want high school to be that time of self-discovery, as it has the potential to be, I think you should devote a fair amount of time to, you guessed it, discovering yourself. If you're someone who LOVES studying all the time and whatnot, absolutely go for it; but I suspect that many people are not like this, and that's okay, too. Find something you love to do outside of the classroom, and to the best of your ability, do it. Whether it's music, football, activism--you'll know you love it when the energy you want to devote to it seems inexhaustible.</p>
<p>I think what marked graduating from high school for me wasn't that I was going to Harvard, but that I knew I accomplished great things in high school because I wanted to, because I enjoyed doing what I did and was generally happy all four years; where I went to college seemed, strangely enough, secondary to that. </p>
<p>And that, I think, would be my major advice. Oh, of course do well in school, get good grades, do well on the SATs, write good essays, etc etc etc.</p>