doctor visit thursday

well I had to go to get x-rays on thursday and to my dissmay I was told I have also been diagnosed with emphazima now Im 54 years old I work full time and yes unfortunetly Im a smoker I dont enjoy it but I cant seem to quit my doctor told me if my oxegen level doesnt change in 6 weeks Im on oxegen for the rest of my life he perscibed me 3 new meds and the co pays were through the roof now I recently got laid off till august and I cant get my persciption they were meds to help me breath and two were to help with quitting smoking I did pay for the breathing meds but I couldnt afford the other I dont understand why the insurence compant wont help me with this would they rather cover my lung cancer payments or help me quit smoking I honestly want to quit but I cant seem to do it if you are or were a smoker you understand what Im going through.can anyone give me some hints on how to do this????