Thank you all for your input and advice. I really appreciate you all taking the time to write out your thoughts 
It’s frankly alarming to hear that I should have a better idea than I have now–I’ve been told by many a college/guidance counselor, adults, and people on this site that going into college without having formed my career ambitions is totally normal, common, appropriate, etc. I am am reluctant to consider a gap year because I don’t want to forgo the opportunity I have presently, and because I have no reason to believe a gap year would help me figure anything out. From what my parents/other adults have told me, that’s what college is for.
For what it’s worth, I won’t be taking out student loans.