I'm quite different to you, in that music was, and to a lesser extent continues to be the only love in my life. I quite enjoy the stimulation I receive from it.
I listen to music pretty much constantly, despite suffering 24/7 from derealization. I even put on music when I sleep, to distract the nerve endings in my ear from the deafening tinnitus. The music sounds a lot deeper than it used to. Almost like it bears a whole new level of richness to it. I don't know whether this is another after-effect of the mind-expanding (and constricting?) mushrooms, maybe the fellow HPPD/drug-induced DP'd people can relate.
Although, what I will say is that my musical tastes are ever-moving away from what I used to listen to. Before my onset I listened quite heavily to the eclectic psychedelic rock of the late '60s (Hendrix, Doors, Pink Floyd, Jefferson Airplane, Grateful Dead, and so on). Even some psytrance like Infected Mushroom and Shpongle.
Nowadays I tend to listen to minimalistic, beautifully poignant music, as it does help me unwind. Stuff like Leonard Cohen and Bob Dylan. I'm listening to Johnny Cash's career-reviving American Recordings at the moment, which I am thoroughly enjoying.
So yeah, there you have it. It's kinda odd, really, considering how my music tastes have progressed through puberty. Music is a blessing for most people, though, I won't dispute that.
But sorry to stray away from the topic so much. Perhaps in your case it is the anxiety and depression which aren't allowing you to unwind. Just relax, breathe deeply, and let the music take you places. Maybe try changing or moderating what you listen to (sometimes depressing music is not the way to go). Listen to music which suits your mood. I'm sure in time you'll be able wholly appreciate music again. Peace.