How can i get a bank loan for school without good credit or a co-signer?

I am wanting to attend a trade school to get certification but they do not offer any financial aid. I dont have good credit so I cant get a bank loan myself. Also i do not have anyone that can co-sign for me. I am trying to better my education so i can get a good paying job but i cant figure out a way to get my tuition paid. I am needing roughly $17,000 to pay tuition and exspenses. Is there any other type of loan i can get