How do I do this

I'm immature and I have no clue how to be a mother I feel like crying. I'm 23 I don't know why I thought I was ready to be a mom. My boyfriend he broke up I don't know when we found out I was scared but I thought hes going to work provide and I can take classes on birth and parenting. I felt like a woman like I had everything handled. Breaking up has given me so much stress money how can I provide and take care of a child, patience how can I learn patience and how do I be a mom when I feel like a little girl myself. How do I show the world I'm a woman. How do I do this without him. I am thinking about adoption but I want to try first. Any single mom tips how do sixteen and pregnant ladies accomplish this