No matter where you're at, no matter what your situation and especially no matter what your state of mind, I want everybody here to remember that you can always help somebody.
It might not be the biggest thing in the world. Hell, it might be holding a door, or saying hello, or just answering a question. The undeniable truth, though, is that you're going to make a positive impact on somebodies life, and that's awesome.
There are no heroes. Not in the old fashioned sense, at least. That's not how the world works. There is no white knight in shining armor, riding in on horseback to save the day. There are no dragons to slay. The new idea of a hero is much smaller, I think: it's the guy who holds the door, or smiles and says hello. It's the person willing to answer your question.
So smile and put your best foot forward, because you might be an inspiration to somebody and not even know it. I know I can be, and that's totally worth grinning about ; )