I think I may have seen this thread before but whatever it is all good, I am not going to bust your balls for it.
Anywho to get on topic- "to the stars" by Randy Edelman from Dragonheart. no vocals, starts out sad, but is moving and uplifting.
Also suitable is "Fight to Survive" By Stan Bush from Bloodsport. I know with what I have choosen to do it will be a struggle and I am going to be both metaphorically and literally fighting to survive.
Strangely enough "On My Own-Alone" Also from bloodsport performed by Stan Bush written by Shandi Cinnamon and Paul Hertzog. "Hurts to find you failed the test, knowing that you gave your best."
and sadly to some extent "D&D" by Stephen Lynch, although not quite that bad. I have friends though, that fit that song perfectly.