Since you are a hi stats applicant I STRONGLY suggest you not graduate this year, and instead take Dual enrollment classes at a CC, if at all possible.That way you can gather great LOR’s from teachers and beef up your math education. That will make you an even more desirable applicant.
Or if that is NOT possible, take a gap year but do NOT enroll at a CC. Both options will give you an additional year to research colleges, and apply to those that offer merit scholarships[ which are reserved for Freshman applicants, and which often have early application deadlines], instead of just throwing applications at colleges at the last minute, especially since you have had no time to research them and where you may not be a good fit.
There is NO RUSH to find a college right now.
There are LOTS of great colleges in the US that you will be able to afford.
Take your time and come to CC to get any advise re: colleges and the whole college application process you need.
Thats what we are here for!