Help with cancer treatments

I have several cancer spots, some melanoma some not. I don't have insurance and have been trying to do as much as I can but my income doesn't go very far with how expensive health care in this country is. I work 40 plus hours a week welding and repair motorcycles as a secondary job but its still not enough. Any little bit of help would be very appreciated. I'm already selling off vehicles and other material possessions, explored other financial services such as credit care but haven't met with any success. I'm at my wits end and scared of not getting this treated in time before it becomes life threatening. I've never been the type to ask for help but I cant do it alone so anything at all would mean the world to me.