Hi!
I’m also a junior in high school looking to apply for music college in piano performance in the fall so it looks like we are in the same boat
As I’ve read, everyone has given great advice so far and really suggest listening to them. However, as I’ve been looking at colleges, I tend to see that they require a contemporary piece which from what you’ve shown, you haven’t played much of.
With that said, here are some suggestions for a great contemporary piece for college auditions:
Lieberman: Gargoyles
Florence Price: Clouds
Debussy: any of the images book 1 or 2 (an etude could work as well)
Prokofiev: sonatas 1-5 ( 1 and 3 are more in your range but 3 is played quite a lot) there is also diabolical suggestions (not too difficult)
Gershwin: preludes 1-3 (I’d play the set)
I suggest you do some research on your own. My knowledge is limited in contemporary music but there is a lot of good stuff

P.S. if this helps, this is what I am currently working on for college auditions:
Bach: Prelude and fugue no. 16 Bk. 1
Beethoven: Sonata op. 7 Eb major
Chopin: etude op. 10 no. 7
Liszt: Mephisto waltz no. 1
Prokofiev: Piano sonata no. 2