Peripheal neuropathy, what can I do?

my name is Laura Henderson and I have peripheral neuropathy. I believe mine stems from chemotherapy and radiation for cancer. My left side (my hands while driving and the outer side of my left leg) was numb. I went to a neurologist for testing and sure enough my nerves were damaged. I took gabapentin for 2 years and it was no help at all. That was in 2013. In 2017 I learned I had a left bundle branch block and had to have a pacemaker/deliberator. In 2019 I lost the use of my left kidney. Now my feet are numb and it moves to different areas in my legs. Can't sleep at night for the pain and tingling. Does anyone have any idea of what I can do for help?