i wanna make a difrence

I wanna do a singing concert for cancer kids. I wish i could start something but im not sure how. I would love to help many.It's jsut hard for me to do that concert.I want to put my dream and my kindness together .I'm stressed out! I don't know if im going to help anyone! I wanna help but I dont know how to get started. How am i going to put my music and my helpfulness together? I wonder...