working with children..with children at home?

Hannah
Ever since I was younger Ive always wanted to work with children. Now that I have one of my own on the way, which I am super excited for, I'm also afraid that I'll never be able to pursue that dream. I have some questions if anyone would be offering to help.
1. How would I go about being a social worker, like a therapist that goes to the family home? I had one when my family was going through rough times, and she helped me so much. 
2. Are any of you ladies going to college & working at the same time, with a baby at home? Nobody in my family has gone to college or any schooling really. We've always been extremely low income, so I'm kind of starting from scratch with money. 
3. Any other ideas on how to get a start on working with children? I'm so lost and I'm afraid if I don't do something now I never will