Sucks to hear that the will repossess your car. I understand that you put yourself in a bad financial position. Luckily for you, there are a lot of options for these kinds of financial situations these days.
But these options would not land on your doormat, you have to actively seek them. So I suggest you seek them.
I have a feeling you are dwelling on the past but keep in mind, we can only change our future.
Stay strong and keep posting.