what is really promising?

What's a promising career I thought I knew what I wanted to do but to me I think I want to change my mind I live in a small town so cosmology jobs here are rare !!!!!! I need a job that's going help pay for my daughter I can't always just depend on my fiancé to work 😓 I'm just overwhelmed because I don't know what career to do anymore !! Anyone been in this situation before ?