I feel like I have been ****med

I bought a car last year December, after 2 or 3days the car was not turning on it had a starter problem, complained then the car was towed by webuycars ,the claimed they have fitted new starter ,but now one month later my car is having same problem ,now I have to fix the car from my own pocket ,but also I'm still paying for the car monthly, actually last month was my first installment... basically gona pay for dead car ,..,mind you it's only been 1month since I bought the car 🚗 n also just discovered that the starter they claimed its new was actually not new ,meaning I have been taken for ride,..by Big company like Webuycars