Student loans without a co-signer?

I need to get a loan asap. Problem is, I don't have the money to pay it back right now. Since I am a college student, I was trying to get a student loan. The only one my school works with to give the funds to me is Wells Fargo. They have denied both of my parents, and my grandma. I have NO idea what to do now. ANy suggestions? (By the way, this is a trip related to my field of student, but not required for school, so they won't pay for it.)