So, you are 14/15? Your actual, physical brain is about to go through its biggest transformation since you were a toddler. You will (or should!) learn and grow and evolve dramatically over the next number of years. Keep following the threads of your genuine interests, but don’t assume that you have sorted it all out.
It may be that the route you have mapped out will be exactly the right one for you. It is more likely that there will be some adjustments- maybe small ones, more likely big ones. The MIT admissions blog applies to any of the super selective schools, and is still the best advice going.
You have set out a laundry list of high profile things you are hoping to do (b/c while you are ‘planning’ to do them, you have no idea at this stage if you will get any of them), and are asking for more, with the idea that they will somehow validate you when it comes time to apply to college. Anecdotally, not one of the (unhooked) students that I know who have been accepted to Yale has been to any of those programs (or similar ones), except one international student who did YYGS.
Just as well, as neither sociology nor academia are particularly well known for being lucrative pathways!
[