I donÂ’t want the Ins co. to total out my cash car.

I live in Dallas TX and drive a 1995 Grand AM SE 4 door Power doors and locks. I paid $2000.00 for the car in 2006. I canÂ't afford a car note at this time. I was hit by this cowboy in an F150. He was at fault and his ins co. has accepted liability. (by the way his truck is just fine) It will cost $2160.00 to fix my car according to his insurance company certified repair company S-King. The only damage is to the front drivers side panel, bumper head light and hub cap. My car is drivable and runs just fine. The Ins co. wants to total out my car and give me $800.00. l I cannot buy another cash car for $800.00 which means if I give them my car, how will I get to work? Pick up my kids LIVE MY LIFE! I refused and told them I want to keep my car and that they need to pay for Cowboy negligence. Do I have to give them my car and take the $800.00? Can I make them repair my car? I was minding my own business when I got hit by the cowboy and now Farmers Ins it trying to put me I the poor house. Stressed.