Just thinking out loud here, but if you don't need a 2nd or 3rd row, don't do any towing, then why an Expedition?
Trade that sucker in, even swap for a used something-else. Even trade meaning $0 exchanged, but it'll likely have to be uneven trade, and clearly not in your favor for the other party to consider. In other words, I see a '97'ish Corolla, Focus, or Civic as an ideal candidate. With nearly 200K. A young couple with small children and another one on the way will be your ideal candidate.
If as a college student you bought the Expedition yourself, it was a terrible decision. If it was given to you, that person didn't consider the financial burden it would impose.
Otherwise, air up the tires to 40. Stay in the right lane and let others pass. Keep it under 55 on the highway. From a red light accelerate lightly, like a grandpa in a Prius. Plan your trips better to avoid unnecessary mileage. If you don't have money for books, don't ask about buying a tuner. Keep windows up and AC on. Get a stack of scooter rental codes.
In answering other questions you never even asked, I'd suggest taking a long hard look at the job market in your field of study and ask yourself, is there going to be a return on your educational investment? FWIW, I have multiple employees reporting to me, upto their eyeballs in tuition debt, working in a completely different field than they studied for. (and yes, they all know more than me, but the one thing they don't know is their monthly gross pay is about equal to my 401K contribution)
