How can I get money to go to school?

I am trying to go to cosmetology school in Scottsdale, AZ. I have absolutely no money, my credit is 640 so I would need a co-signer on a loan but my parents are refusing to sign with me. I don’t know what kind of loans are available to me since I’m not going into a 4-year program. I looked online at federal loans but I really just don’t know how any of this works. Please help?