As everyone says, there is no right answer, only what’s right for you. I’m one of those who worked throughout treatment but I had none of the side effects that can make that really hard - no
brain fog, nausea or fatigue. I also showed no signs of any damage to my immune system, didn’t pick up any viral or germy lurgies ( pre COVID though). My time for thinking about beneficial changes was a year later - a new job, big challenge and a four day week! Everyone has different times and motivations for what they do and what they can do. While the financial repercussions are very real if you stop work, you also need to factor what else you get out of soldiering on. It sounds pretty grim! Your emotional health as well as your physical health might be eased considerably by taking a break. Best wishes whatever you decide.