I’m Scared and it’s stressing me out

So all my life I've wanted to become a nurse, but everytime time i get the courage to start it i always find an excuse to back out. First it was me being a working mom, then it was me being scared to take the test, then it went back to being scared to take the chance at doing it cause i don't know how to balance work,school & children. (I don't have a support system). I've been a CNA/ Med tech for over 10 years working in nursing and assisted living and i recently lost my job and lately l've been thinking more about an actual career and im just so stressed about it and everything else. But then the fear comes in heavy and i don't know what to do.

I'm scared of failing. But i also fear not making anything with myself