Being a single person earning $31k per year, why wouldn’t there be an expectation that you should contribute 7500 per year towards the cost of attendance?
The $17,500 college cost consists of what? How much is the tuition?
College aid isn’t designed for folks to live on their own. That’s a luxury. Share an apt or rent a room or ?
EFC of 7500 sounds correct. I assume you probably earned less than $31,000 in previous years. The expectation for single students without a spouse or dependents is that you will be able to contribute a relatively high percentage of income toward your schooling. That is just the way the EFC formula works, so it is not anything the school chose to do. Your aid is awarded based on the EFC, so as EFC rises, aid will fall.
I realize it is difficult to make things work, but you will only have to make sacrifices until school ends. Live in a manner that costs as little as possible. If all you qualify for is loans, you are very limited in terms of what you can borrow. I hope you are able to make this work so you can finish up your degree - that is very important to do. Best to you.