I'm considering going to nursing school but wondering if it's the right move. I have a 3 year old and a fiance. Only problem is I'm the main source of income. Should I try or nah?

Obviously, you need to live! You have to evaluate if you can afford the commitment ( cost, time, family) only you can make that decision. Depending on your route, you can look at 2 years nursing programs as well since we keep hearing about the shortage. Best Wishes to you!