I was under the impression that any 3 year Bachelor level course was only 1 year to do a grad Dip.
My brother did a 3 year music course and then a 1 year grad dip ed.

What about school nursing?? nurse immunisor?? community health nursing (more education based).

Good luck its hard to know what is right to do. Doing MCHN now part time and it is full on and massive strain on life at present but hope at end of it hours will make a happier life for all!