What Have I Done? Lyrics

Lyric discussion by XLoveEpiphanyX 

Cover art for What Have I Done? lyrics by Cursive

Sounds like a lot of things, sadness, remorse, anger, fear. The most to the point lyrics I think are:

"You're young and you're going to be someone Then you're old and you're ashamed of what you've become Well, take a look around you You're preaching to the choir"

What have YOU done?