This tells a pretty dark, though informative notion. With so many problems in the world, it can be hard to smile. This shooting, this chaos, it is painful. I like the line "I'll smile when the world fights back." It really draws your message out. Your message is strong and resilient here; it's great to see such resolve towards a cause.

Keep up the great work; perhaps next time your inspiration can come from better circumstances. Either way, keep writing.