How do i go about raising money for myself so i can get gastric byp surgery i so badly need ?

im 36 yrs old and morbildly obese,i have several heath problems ranging from diebetes,to high blood pressure,my doctors say i need surgery to basically save my life but my insurance wont cover the expense,so here i am desperatlet trying to find any means possible to raise money so i can have the surgery..i realize it may take a long time but im willing to fight and not give up .i dont know how to go abouts raiseing money .other then juat ask people for money please help me..sincerely jeremie