You brought up your SAT score by 70 points so that will definitely help! Is 1330 the superscore or were you able to raise both math and verbal in November? I think your extracurriculars will definitely be a plus. I don’t think that Chapel Hill is a definite for anyone though. My daughter told me the salutatorian from her school was denied acceptance last year and ended up going to MIT - so ever since then, we assume it is a lottery even for the super high scorers/high GPAs. Best of luck to you!