Poor states are funded by their taxpayers, so the dollars are very limited for their residents. It doesn’t matter what your grades are because there is a finite set of dollars. Where would the money come from???
The first person, responsible for funding, is you. Then your parents are on the hook. Your state helps you, but you are the first payer. So your options are: work, or student loans.
Those of us, who have grown up in poor families, learn to “hustle” multiple jobs to get and save money for our education. It’s not easy and it is very tough and tiring, but it makes you a better person.