It sounds like you've made up your mind about nursing, but...! There are places for nurses to work that are much less stressful than a hospital setting! I worked in a nursing home and you pretty much have a regular shift, so when you leave work you leave it all there. My sister is a visiting nurse. She sets up appointments with her clients, does the online paperwork at home, and has plenty of time to be with her teenage son.

Just some thoughts.

Sending good vibes your way.