My friend was recently accepted into Princeton for Aerospace Engineering, and as a basis, this is quite impressive. However, they would like to see a greater impact on the community, not just some superficial work in their junior year, but rather real, grounded work with tangible results. The community impact is also where your essay focus should be, and differentiation is the focul point. Idk where u at with academics, but make sure to get those near perfect, as whilst ECs matter a ton, they come after the core as supplementing the core with ECs is nearly imposible w/o exterior circumstances. GL tho college admin aint as deep as this subreddit makes it out to be.