So this is part of why it is a good idea not to have specific “dream” schools, and generally to remember these are all just colleges. There truly is nothing uniquely valuable about Princeton, or the other schools that did not match you.
There are definitely unique programs offered and a unique experience possible there not possible elsewhere, as well as, being honest, a unique perception in the cultural zeitgeist.
Congratulations and do not look back.
I try, it can be difficult though. Even just trying to relax earlier today, I couldn’t help but notice that Conan O’Brien had gone to Harvard and wonder how much that contributed to his success. Although, I suppose it’s somewhat reassuring that I was only watching Conan clips for Norm MacDonald, who was a high school dropout himself.