Health care professionals working with breast cancer patients post diagnosis

I met a nurse the day my port was to go in; it was her first week back after finishing treatment. She’d worked in the oncology unit for years and years and said she was happy to be back there because they supported her so well when she was off. I suppose if your work is supportive it might be nice? 
I’m a nurse but not within adult oncology.. I plan on going back to try it out but I almost feel as if I don’t want to look after anyone else anymore, I want to look after myself. Time will tell!