You don’t want to hurt your credit or accrue more interest by paying late out of spite or frustration, so keeping up with payments is an important first step. The next steps are:
You can also sell the car, but that wouldn’t absolve you of the $5,000. But you can get a new loan with a principal of $5,000 rather than the remaining principal before you sold it, which can make the payments far more manageable.
Best of luck with your loan!