I would call it worse than Hell. Its pure torture and not quitting.
I was interviewed for a cancer podcast where I was asked how did I do it. I was my own caregiver mostly, after surgery, I had minimal support with chemo and now struggle with side effects of 2nd treatment for breast cancer as a man. I did not know who would be there to support.

The hardest part of any challenge is how to manage your emotions and of those around you. I have faith, but did not bring God into the picture. What I needed, God could not provide. I had to stay focused, found strength that I didn’t know I had and kept moving without knowing when I could rest. I had several days where I didn’t want to continue with chemo. I was driving myself to/from treatment, 6 hrs of med, then crashing for 4 days, and working from home. Work gave me purpose, and good distraction. I was self-imprisoned at home for 12 weeks, until chemo ended. Then more fun came in the form chemo fog, and other physical ailments.

I have support now but until life happens again, believe in yourself to overcome.

This is my podcast interview -
https://podcasts.apple.com/us/podcast/the-cancer-caregiver/id1504166813