Cancer Treatment Costs Overwhelming Her

I've never done anything like this but I need help. I am 67 and I was diagnosed with breast cancer in my right breast and lymph nodes in my right arm pit. I am in stage 2. I have had chemo and surgery which has been financially hard. But my journey continues. There was more cancer in the lymph node than the Dr expected and I am being told I need radiation treatment. The closest place to go is over a 2 hour round trip, my copay for each treatment is $80 and treatments are 5 days a week for several weeks which means huge gas expenses. I can't do it. I tried Medicaid but my social security is just over the allowed limit. I've cut as many corners financially as I can but it is not enough.

It is my hope, my prayer that I can get thru all this and so I am humbly asking for help.