Calc III + Linear Algebra as Sophomore

Calculus-based statistics and probability isn’t “easier”, nor are many of the classes suggested here, so don’t worry about it.
I think you should take 2 math classes at the college (one calculus-related and one statistics or discrete math?), along with one foreign language class (French or German), plus 3 classes at the high school (or 3 academic classes + 1 elective/fun class).
And find a way to make your skills and advanced knowledge useful to others.