How can I pay for school?

I am 20 years old and trying to figure out a way to pay for school. My parents have paid for school for 2 years and now they don't want to pay anymore. I have tried loans but need a co signer ( of which I do not have), I also do not qualify for financial aide. I feel like my only option is to wait until i'm 24 in order to be declared an independent in which case I would get financial aide istance. Are there any other ways to pay for school?