Where can I find someone willing to help my family?

I am a single mother of 4 who cannot work because I have a severly handicapped son with cerebral palsy and seizures. The day he was born we had a very traumatic incedent that has changed my life forever. I need some extra help. or support. I casn't afford my rent and bills and 3 other children besides him on ssi checks. I am living in florida, I only moved here for the hospital, but noiw I have nothing. I want more for my children. Please help or refer me to someone that could help. My children deserve the best life and I want to be able to provide it , but I need the help to get on my feet.