My brother had Lymphoma last year. His life was on pause, he lived through the treatment, it had its obvious impact on his family life, but he's fine now. It wasn't a battle, but a feat of endurance. His hair still isn't the same, but he doesn't miss the chemo tiredness, sickness, or lack of social life.
My Dad has testicular cancer. Again, he has to get into a new routine, living with a long term chronic illness that, in his case, won't get better. He's on testosterone injections, and an experimental drug, but it only keeps the cancer at bay, it doesn't cure him. Initially he's been given 3 years, maybe longer, but at some point his treatment will stop working. In the meantime, he is taking more exercise, eating better, and looking after himself. It's a test of faith, of endurance, of re-acquaintance with family forgotten, of arranging wills and estate, of seeing as much of the world as he can before it gets too much. It's making sure life will be okay for Mum after he's gone. It's a c* of an illness, that no benevolent God could have thought was a zippy idea.
I donate to CRUK and may stop because of this campaign. I'll donate to my Dad's hospital, the same one that treated my brother, instead.