I’m becoming really unmotivated to play piano.

So basically I have been playing piano since high school and I’m a senior now. I watched a school performance concert and everyone was really good. Like these people are going to prestigious places to perform and yeah stuff like that. What am I doing. I’m just a mediocre player that can’t even play ballade no 1. I don’t even know what to play on this instrument. Do you guys have any advice?