OP don’t worry too much. I’m currently a freshman in college and Princeton was my dream. My life felt like Princeton or bust well, along with the 90%+ applicants i got rejected but you know what? Life moves on! Although I’m not at Princeton im at a instituion and i am enjoying my college years.
At the same time though it seems to me you need to open up to reality a bit more and understand the college process but dont get discouraged