You might should have considered Nuclear Engineering department at University of Michigan - Ann Arbor, which is ranked No. 1 in the US (in contrary, MIT's nuclear engineering department is ranked No. 2). It's a better program and you might learn more things than what you could do at MIT.
I did study nuclear engineering, both bachelors and PhD, and in hindsight, the path I took is one I’d gladly take again. That said, everything I did in undergrad was eventually overshadowed by my graduate studies and early career experiences anyway, and I’d have likely wound up in the same general place regardless.
The stress we put ourselves through in high school when applying to colleges was not worth it, and I can’t it being any better these days. As trite as the advice from my elders seemed at the time, your choice of undergrad is not necessary a limitation if you’re determined enough to get to a particular career destination.
