Your car sounds like it's running rough. It may need a tune up. Go to a local mechanic and have it checked.
Filling your fuel tank will not make your car shake, unless you got some bad fuel that was contaminated with moisture.
Possibly
why does my car turn of when i push the gas
change the plugs and wires.
push the gas pedal really hard
If you push the gas and the car goes, its on.
Push it into a heated garage and wait.
unlock the car and push the gas tank lid.
No. And...uh...how do you shake a gas?
push on the gas pedal, man!!
Push in the clutch and give it more gas.