Why does music make me so depressed?

Okay so im 13 (girl) and I barley have anyfriends and stuff plus im ugly.. but anyways.. I listen to hollywoodundead and it just makes me so sad.. like I wish I lived their lifee and stuff,, and Even the happy songs that are upbeat and stuff (no5) get me sad...But I started listening to Duece (9lives) story of a snitch and I started crying.. idk why..even when I listen to MychemicalRomance and eminem.. I just wanna meet them so badly and hang out with them.. but then I look and see at all their MILLIONZ of fans.. Im never going to be lucky enough for any of that.. I just feel so depressed.. Im just a waste of skin and I wanna kill myself and die.. theirs nothing worth living for.. I even cut myself..just nothing.. my parents dont care theirs no one I can talk to.. its just not worth it anymore :( Please help.. just someone.. or dont.. i dont care about anything anymore :(