Should I do it or try something else?

Currently work in healthcare as a MA and I am a bit uncertain whether I should do nursing. I already got into a program and I am scheduled to go in 4 months. I think like with anything there will always be a sense of doubt when investing some time and debt into something. I am naturally an introvert and I can deal with people but it is draining, especially the difficult patients. It is a very customer service oriented profession. I can do it and be good at it, but I am not sure if I like it. Yet I feel that I invested a lot of time in healthcare and I know what I can expect out of it. There is a lot of advantages such as in demand, job stability, good pay, a lot of career progression, job flexibility (go per diem, float pool etc..). I worked in other sectors before like retail and sales. They all have their pros and cons.

I am thinking about doing healthcare informatics or data analyst, but it is uncharted territory and I feel like I have the grass is greener syndrome. Nursing is something I think I can be good at, the others I will have to look into it more. I know that work is work and a lot of times there are good days and bad. I am just confused and lost on what I want to do with my life. I figure tho with nursing if I hate it I can do NP, nurse informatics, nutrition counselor etc... Plus working 3 days a week it will give me opportunity to have good free time to do hobbies, side businesses, that is what I want most of all. Is the grass is greener? Help me refocus.