If you only got A’s, your GPA should be in th 3.7-4.0 range, so you made a mistake.
Don’t dream of Yale or Stanford.
Instead, buy those books:
- AdMission Impossible! or The College Solution
- Colleges that Change Lives
- The Princeton Review’s Best Colleges
Start reading, putting post-its next to the narratives you like.
As for math:
Harvey Mudd, Northwestern, Williams would be logical reaches.
What State do you live in? => to see if your flagship and Honors College would work.
Can you list your classes per category (with level, ie., regular, AP, Honors…)
English =
Math =
Foreign Language=
Science=
Social Science/History=
Art=
Electives=
Have you taken the SAT or the ACT? SAT Subjects?
What’s your parents’ budget for college?
Is that different from their EFC?
If they don’t know their EFC, get them to calculate it ASAP:
https://bigfuture.collegeboard.org/pay-for-college/paying-your-share/expected-family-contribution-calculator