I have a 06 Lincoln ls now for a while the car wouldn't always accelerate initially hitting the gas but then it would and the car would jerk. Well other day I'm driving and it completely stopped moving while doing about 35. It is an automatic transmission but you can also drive it manual without the clutch. It starts fine goes into gear acts as if its going to move but doesn't in none of the gears but if I switch it to manual it will move I don't even know how to drive manual and it will not reverse. Do you think my transmission is shot?