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<p>My top advice: Don’t just target activities just because they will help you get into MIT/a good unversity. I know a person, like 4 years ago or so, that did that and he got into some good unversities, but he is struggling at the current unversity he is in because half of the things he did in high school were that way (for example: for his research project, his partners and professor practically carried him and got him Siemens Regional Finalist, which he regarded as something that would get him into a top college, not as an achievement of hard work on something innovative). Thus, this hindered his ability to work on things that he actually liked, limiting his individuality, and it taught him the wrong ways to be successful.</p>
<p>However, that doesn’t mean don’t do anything…you should still do activities in science/math that help you but you appreciate them/work hard on them also. </p>
<p>You should try to do some research. It doesn’t really matter where or how; I know that everyone in my school that might apply to MIT next year is doing research, some at programs and some at local unversities. </p>
<p>Also, you should try doing competitions. Like what kemcab mentioned, there a lot of competitions, and a lot of schools offer atleast one Olympiad. And don’t be intimidated by an Olympiad; I know everyone says it’s impossible to make it, but I think if you work hard enough, you can make it.</p>