I would suggest to anyone who is looking at loans to finance college to seriously sit down and calculate a "worst case scenario". I am about to graduate and move on to 4 more years of professional school, which will leave me, at the end, over 100k in debt. I am only doing this because I have a job lined up afterwords that will enable me to pay that back in 6-7 years of 2k a month payments. If you can't figure out in your "worst case scenario" how you'll pay them back, it's not the right time for college. Honestly, I am lucky everything is working out for me.
That being said, once you're in/through college, there's not much you can do other than either quit while you're ahead (i.e. before you've racked up more debt) if it looks like you won't be able to pay it all off, or finish it off and hope for a good job. The other alternative is to look for paid internships and companies willing to sponsor you. Many companies have assistance programs that are "employees only" but will either offer unused funds to regular students, or even give you the funds after giving you a paid internship to be an "employee".
After college, there are multiple ways to go about your loans. While I am not sure who your private loans are through, I recommend calling the loan originator themselves (ex: Discover) instead of the third party servicer of the loan. The servicer of the loan is extremely limited in what they can do other than take your money and forward it to the originator that you paid for the month. The originator of the loan is the one who sets the terms that they want you to follow. Talking to them may reveal options that the servicer never even thought about.
Just as an example though, my loan servicer even has repayment options right on the top of their website. I think you may need to use the HUCA approach to customer service (hang up call again) until you get someone who will at least listen to you and may be able to recommend a plan for you. It is rare that a loan originator and servicer will not work with you because they want their money back, and you are genuinely trying to pay it back.
If you don't mind me asking, why are you working at WDW? Is it a job you wish to keep for a long time? Is it a job because you weren't able to find other jobs? Is it a job as part of a career-related experience (similar to an internship or DCP for example)? If you are working a low income job by choice - as in there are higher income jobs with your degree but you're choosing not to work them - there's not much they will be willing to do. But if you are working a low income job for a good reason such as it'll help you in the future, you're going to move up, you have a guaranteed promotion, things like that; then they will be more willing to work with you as they know that your income will be going up.
I would definitely recommend talking to at least one (and probably all) of the following in your area: banker, tax specialist, school's financial department. They will be able to help you get to where every ounce of your paycheck is going to the right place and make sure you aren't losing money that you should have in your pocket.
Best of luck to you and I hope everything works out!