I think you've gotten some pretty good advice. You're on a decent track.
- Sell truck, put some towards personal loan, some towards an emergency buffer
- Refinance 15% loan asap at, say 8%. If your credit is good, you might be able to do a balance transfer: something like 3% fee, 0% APR for 18 months, or some such crap. At $600/month, that's almost $11k in the example 18 month period, between that and the truck sale and savings on insurance, you should be able to knock it out. If you can't get such a deal, then a simple refinance is crucial.
- Get another roommate if you can.
- Any extra cash you earn, dump into your highest loan - currently 15%.
- Agreed that you might want to get a different car, sell the old one. On one hand, it's a waste of money because it's only worth about the amount of the loan, and you'll still have to pay for a different car. On the other hand, at 175/month, it will take you... uh, four years? to pay for the damn thing. That's four years of driving something that pisses you off. Unless you love the car and are very happy with it, I'd definitely replace it with something cheaper. Bonus: cheaper insurance, too.
- Obviously, if you can find a job to replace the warehouse job, that would be good. At 120 miles a day, that's (according to the government) about $60; even if it's only half that, it still knocks down your $20/hr ($160/day) job to $15/hr ($120/day). Some of that's gas money, some is car wear and tear, some is depreciation. So a job in town for $15/hr will probably give you just around the same amount of take-home money, except now you're paying less in tax and you just got back five or six hours a week of your life to rest or work or whatever. By the way, that doesn't even count your commute time as a monetary cost.
These changes will have some up-front cost, but after they're all said and done, you should find yourself debt-free in a couple years, with more saved every month, and more time, and either less taxes paid or more money taken home after expenses.
Out of curiosity, what do you usually eat?