Yes, it is true if your heart is not into it you will become miserable and brunt out. Giving up your nights and weekends is something you need to think about before going into the nursing program. Clinics, dialysis, chemo, mangement, and schools may be areas of interest you could consider. However, the nurse programs are very demanding of your time.
I think the nurse should have let the family spend more time with the patient. When I did my rotation in ICU there was a patient who had been taken off the vent that morning and the nurse allowed the family to spend time with the patient. I think the family need time to say good bye to the patient to help deal with the grieving process.