Class of 2018, my statistics so far... thoughts on chances???

Unweighted GPA: 3.75
Class rank: 18/489

SAT (I took it very early in November as a junior to get it over with) : 1480

AP Stats Exam: 5
APUSH Exam: 3

Current APs:
AB Calculus (on a really good track to get a 5 on the exam and maintaining an A+ average),
Physics I (maintaining an easy A and the class seems really easy, heard the exam was tough so not sure about the exam), Language and Composition (I’m getting wrecked in this class and getting a low B- and a C+, but I’m learning a lot and a 4 is possible),
Chemistry (Maintaining an A but is pretty tough and requires a decent amount of work to learn material, on the exam might get a 5)

Volunteering a decent amount, NHS, decent amount of clubs.

I’m also a competitive swimmer and am looking for a D1 swim school,maybe an Ivy.

What are my chances? Any tips you guys could give to help me would be greatly appreciated:)