It is a grade that you will learn and grow from. Your high school should have offered more guidance on this milestone course. I am wondering if they advised against it initially?? Most high schools advise against it this early and if you have any accommodations, they should have explained the process of what that looks like in college. It is not the same.
Keep in mind there are lots of pathways to affordable college options. You can work with your family to run the net price calculators on some colleges to understand what aid might look like.
Expand your possibilities beyond the T15 or so. Also look at state flagship honors programs and private colleges that offer merit, ones that are not just need based aid.