The steering is stiff refusing to turn after I was hit in the rear. All the warning lights on the dashboard are lighted
Stop driving the car until it can be inspected.
Why are you not calling the persons insurance that hit you if they have insurance ?
This car needs to go to the shop. Has it been there yet?
Whoever caused the accident should proved a loaner car to you while yours is fixed. My insurance company handles everything for me. Maybe yours will too. Call them and find out.