First, if your parents aren't millionaires (preferably billionaires), have them disown you and get adopted by people who are (bonus points if they're URM). This should be done ideally before you start 8th grade. In 8th grade, have them pay for you to go to Exeter and start studying for the SAT and ACT in the spring of 9th grade (you need perfect scores on both to set yourself up for success). During your summers, make sure you volunteer abroad doing medical work like assisting in surgeries for children with cleft palates in undeveloped regions. Bonus points if you actually perform the surgery yourself, but even if you don't, just lie in your personal statement and say you did anyway - who's gonna know? No one, that's who. In your classes, make sure you try to be nice to everyone superficially, but when they ask you to help them with their homework (because you're the brightest kid there, obviously, so everyone's gonna ask you first), help them get all the answers wrong instead. Make sure to group study all the time and continue reinforcing false concepts (for example, when studying for AP US History, make sure you tell them how great of a president Alexander Hamilton was). Of course, this means that you'll have to study all the correct information on your own in secret, but it's a small price to pay to be at the top of every class. Remember: success isn't just about making sure you succeed - it's also about making sure everyone else fails. Now, senior year rolls around and your perfect test scores + valedictorian + multiple summers of giving botox injections in cambodia or something + the nice 7 figure donation your "parents" gave to Harvard means you're just applying early to Harvard, and maybe Yale if you need a safety school (you don't). Once you matriculate to Harvard, be sure to wear your Exeter sweatshirt all around campus - that makes people respect you because you're better than them. Continue the same academic practices you perfected in high school, except now make sure you bust people for violating the honor code, even if they actually didn't. Harvard's motto is Veritas which means truth, so you have to tell the truth about how all these kids cheated on their tests even if the truth is the way the world should be (according to you) and not the way it is. You're rich and on your way to being successful, so the dean will for sure believe you and everyone will get honor code violations so you have no competition when applying to medical school because 1) everyone at Harvard except you is blacklisted from med school and 2) people who don't go to Harvard don't matter. For best results, do this in your organic chemistry class. It's okay, they'll all just end up going into finance anyway (where honor code violations are seen as more of a moderately impressive EC), so don't waste any time feeling bad. Double dip your ECs every summer. Get yourself a sweet hookup in a nobel prize lab and take credit for things that other people do (this is called "middle author" in academia). Meanwhile, on your AMCAS app, just keep putting stuff about solving hunger in burkina faso. When they ask for a reference phone number, just put an international number that looks legit - they're not gonna check anyway. Oh and also put a bunch of shadowing hours - make it a combination of urban family medicine to show you're sensitive and compassionate as well as orthopedic surgery so that they know you're gonna be a *~*~*serious*~*~* med student and not some lazy primary care hack. Oh, and finally, the MCAT - yeah the test companies don't really have that tight of security so you can just look up all the answers on google on your ipad pro anyway so just get an easy 527 (get a question wrong so that they know you're not cheating but make sure its in the psych section so it doesn't actually matter). At that point, you're a shoe-in for top 10 interviews galore. But wait, there's more! On your interviews (only attend top 5 interviews, everything else is beneath you), figure out which applicant has the walnut allergy, slip some trail mix into his chips at lunch, then use the epipen that you stole from that really nerdy kid who plays WoW in Calc III to save his life (there wasn't any angioedema anyway). After that, the adcoms will know you're legit and you won't have to interview. Finally, once you get your 5 acceptances, make it clear to every school that you will not go anywhere unless they give you a full ride, which they will because in your emails to their FA officer, just say that the other top 5 schools all gave you full rides but you really want to go to theirs. Finally, come August, don your white coat knowing that you mastered the admission game and have officially become the most successful applicant in the world.
Or, you know, don't, and just get good grades, volunteer, take the MCAT seriously, and be generally nice to people.