money for lvn school

Where can I try getting a loan for about 21k to go to a vocation school to become a LVN?
I don't have established credit as I'm only 19 and work only a part-time job.

I'm going to a community college and almost done with ADN prereqs but i'm very doubtful i'm gettin into the program, so want to consider becoming a LVN first, but don't know where i can get a 21k loan...

the vocational school doesn't help with financing, they use to do sallie mae but i guess not anymore