Worked through this myself. Not as a nurse or care assistant, but as an NHS binman. Still saw lots of shit I basically cant talk about (not due to emotion but due to Trust policy as its a bit too specific). Saw doctors, nurses, care assistants walking around like zombies after having worked 18 hours straight. Saw morons walk in and film them thinking there was some major conspiracy. Heard the lungs of patients rattling as they struggled to breath. Two workers I knew died. Heard from colleagues how some other morons had "served legal papers" on the staff (thats not how you get "served" here btw) and then saw it on the BBC 6 oclock news. I also saw the hard work of every delivery driver, supermarket worker.
What did I learn? That some people will fight to save your life, even if you've not taken heed of all the advice.
I have a two year old niece now. I'm reminded of when I was a kid in the early 80s and war veterans would come and talk to us about WW2 and Korea. I am thinking it would be good if some of us did the same for these kids in a few years. If we went and talked about what we saw, not the scary/nasty stuff, but the stuff that makes people hopeful for humanity.