I dearly dislike how nurses, teachers, anyone in the helping profession must have a "calling" and not be in it for ... you know, the decent wages/schedule/etc etc.
My first career was a teacher. Guess it wasn't my calling, because the constant bringing home of work really wore me down. Maybe I brought that upon myself, because I didn't go into the field as a calling but because it interested me and because I thought I would be good at it.
So here I am, second career as a nurse. Sure as hell not a calling. I went into it for the decent salary, schedule (24h/week ... can't find that as a teacher), interest (I'll truly never get bored), and I don't bring home work to do at the kids' soccer games anymore.
You don't hear people lamenting about game design, marketing, computer design, accounting, Human Resources, etc etc being a CALLING for anyone to be a success in, at least I haven't.
So why do nurses (and teachers) have to be martyrs?
Oh yeah, we don't.
It doesn't have to be a calling. Find out, why does nursing interest you? Go into the best possible fit.
At the end of the day, it's just a job.