I have a 1280/1600 on the SAT (not that good)
a 3.9 unweighted gpa
I play many instruments and dance and have a lot more extracurricular activities
There are a lot more factors that go into your application than just that. What’s your class rank? Courseload (APs, IBs, honors, dual enrollment, A-levels)? Do you have a passion for this school? Do you have any hooks (first generation student, legacy, underrepresented minority, etc)? How’s your writing ability? What about recommendations? All of this is important to your admissions decision.