Help box

As much as I hate asking for things, I know i need help. Paying it off myself isnt something I can do alone though. Im 100% I'm not going to get compensated or anything for what's happened thus far. In november of 2017 me and my mother bought a truck from a used dealership. From the get go there were problems that we had to fix. Brales right off the bat, Cadillac converter, etc etc. Last night my mom was using my truck and it cut off. The people from the shop have now said we need a WHOLE NEW MOTOR. I don't have a way to work, and my mom is going to be using my sisters car. But the car place wont give us any help or anything so now im stuck paying thousands of dollars off for a truck that i did have for a year, but a year shouldn't be enough to need a whole new motor. Im 20, i have a low paying job and im trying to build credit. My car payments were $420 a month. I paid half my mom paid the other. But i have to give these people this truck back, i cant use it. I think in a couple months, what little credit i have is going to be blown away by this tremendous payment, and i was told by a lawyer who pretty much said i cant do much,  said i might have to file for bankruptcy when it goes to collections. Im so young, i dont have a car, so i might lose my job if i can't get there, but i can't get another job because i wont have a ride. Any help is appreciated.