Half-Marathon for DSL

I am a 20 something year old, who wants to give back. I grew up with a brother who has Down Syndrome, which changed my perspective of the world for the better. I have always been one of his biggest supporters, and would do anything for him. So, I am challenging myself for the second time to complete a half-marathon on March 21st (World Down Syndrome Day) in New York City. My goal is to raise as much money as I can so I can help this fantastic group of people, and embrace their kind, loving, and fun nature.