Income Eligibility Guidelines 04-05
as stated there are federal and state programs to at least help you out with food and medical care for your baby girl.
Your boyfriend / father of the child, needs to mature and get an education and find a job t support you and your child.
You sound like you may have issues with your mother.
First - be very thankful and gracious about every little thing that she helps you out with.
Second, if you can - stay in school and get your HS degree or GED and try to go further.
This is for your future and the future of your child. Census bureau statistics bear out the poverty education level relationship.