Which would you prefer doing? Cleaning people’s teeth, or doing nursing work, probably in a nursing home, since most hospitals are moving towards employing BSN’s? The RN can lead into a BSN, and your future employer might pay for it, while you’re working for them. There is more flexibility in what one can do with a nursing degree. But if you prefer the idea of working in a dental office cleaning people’s teeth, then the dental hygienist program is for you.
I think this is a very good idea, for you to focus on an immediate career goal, quickly attainable, so that you can become self-supporting.