Do you need a car? One has to go regardless. But if the Nissan is worth more than $15k I'd probably sell it and either fix the jeep or buy a bike. Cancel HBO and Hulu. Get your own phone plan.

Sadly stop spending any significant money on any hobbies until you get this debt cleared.

You're young and this is a very minor speed bump. If you don't have rent to pay you could probably put your head down and bang this out in a year and change. Good luck!