This is my humble opinion. I love nursing. I love the act of nursing that is, the rendering of care to a person in need.
I hate the atmosphere. Nursing itself has got to be one of the most thankless, meat grinding, depressing, stressful environments to work in. I've been at this a long, long time and the way nurses treat each other is horrific.
The never ending, petty, backstabbing, can't win attitude of a whole lot of these women I work with just sucks me dry on a daily basis and I'm counting the days until I retire.
I would NEVER encourage my daughter to choose nursing as a career.
Having said that, if you really aren't that sure, and it sounds like even when you were in it you weren't that sure of being a nurse, then let it go. Millions of people switch careers during their lifetime.
Let this be one of those, "Oh and I was a nurse at one time" type of stories. Look into you heart and ask yourself what you would REALLY like to do with your remaining days here on this earth and GO DO IT. Live a wonderful life that enriches you and fills you so that not only do you have good days, but your teach your children by example that life is not to be dreaded each day.
The best of luck to you and my thoughts are with you as you do this.