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Advice would be pertinent here

Hello, I own a 2002 Nissan Altima no real bells or whistles. I have horrible credit. My dilemma is that I bought the car and I am paying 300$ a month I owe 10k on it at 17% interest. I need to figure out what would be the best course of action as it is, I will have paid 20k at the end of the loan. Can someone give me some advice? Should I trade it? I can’t sell it in this economy. However, I can’t Keep it either. Advice would be great. Argh!