Does anyone know where to find emergency financial help?

I am so sad and lost.... I am a single mother and I basically have $400 to work with every month. I had a spinal injury 2 years ago that required surgery and I need a second surgery. I am unable to work now and have been living in my parents basement with my kids. My SS claim won't even be looked at for at least another year and a half. I make unique handmade items and I need more supplies to sell my creations to make some extra money. Before my injury I worked my whole life and owned my own business.... That came crashing down when my fiance passed away suddenly of cancer because I stopped everything to move into the care/hospice center to take care of him... I was rebuilding my life when I got injured. My car recently broke down which makes everything a lot harder. I don't know why I put this as a question... I am assuming no one has an answer...