As a music lover, I know how powerful songs are. My strong reactions to them have caused me to call my daily listening "music therapy." Linkin Park is definitely on my list, but there are some songs on "Minutes to Midnight" that I avoid. I recommend their latest album, "Living Things." It is more upbeat due to the techno, but still has those powerful emotions that do not cause me, personally, to become more depressed. Any who, Enya ("Carribean Blue") is great for relaxation and might clear up your mind. You have to find a catchy song to replace "Leave out the Rest" that isn't as depressing (leave sounds like bleed after all). Something like... Papa Roach's "Still Swingin" or Three Day's Grace "Unbreakable Heart" or Black Veil Brides' "Wretched and Divine." Whatever your preference is, just avoid the ones you cannot handle emotionally.

Edit: "Beautiful" by P.O.D. is stronger, but I think you'll like it.