the problem is you were doomed ever since you bought that car. a 10.9% rate on a brand new car for 7 yrs is a recipe for debt.
imo, you should not finance a car for more than 5 yrs. if you can't afford the payment on 5, look into a cheaper car to keep you to what you can afford. also their is no way in hell i would finance a car with that high of an interest rate.
how come your dad did not co-sign the loan, he is the one paying for it afterall? that would have brought your interest rate down. hell i remember honda financing offering like 3.9 or 4.9% for 5 years on 2002s last february. with a co-signer you could have had a rate like that.