Any advice for an indecisive student?

Hello everyone.
Where do I start? I’m approaching the end of my Junior year, and have the tough decisions to make.
I’ve narrowed it down to becoming a registered nurse or a medical technologist. Two different things in the same field. I know that I want to work in the medical field.
I love science, particularly chemistry. I don’t have a hard time dealing with people, and I would like to be part of patient care, but I think that maybe I’m too introverted. I’m thinking and imagining patient scenarios of where I would have to console and be able to comfort effectively, and I know that I am not good at that at all.
If it’s any indication, my MBTI is INTJ. I like to help people, but I don’t know if I would be sufficiently equipped to develop a good patient-nurse relationship with patients. That’s where my love of science comes in to save me from that in the medical technology department.
I can’t even decide which I would like more.
But.
Registered nursing is in demand, and I know it is a job I would like. It doesn’t really seem like Medical Technologists are in demand and I think in this economy, it’s important for future students/workers to look at job prospects. I hate going into things without a full scope of view. I mean, I’m not looking to get rich or achieve some kind of high status, I just want to have a job that I enjoy and will yield sufficient money to be able to live in this country where the cost of living is on the up and up and up.
I guess I’m writing this because I’d like advice to help me decide.
OR, even better, how did you make your decision to get into the field you’re currently in? Did you go by passion or cash prospects alone?

Thank you for listening to me rant about this. Sorry about all the writing.