I had just left school going less than 20 mph to get to the first stop light. As i got there And came to a complete stop . Then the light turned green. I gave the car some gas and it wasnt going. The happened for a about 30 sec me trying yo give more gas and still stayed the same spot. I put the car in park and then the car jumped forward really hard. So i turned the car off and on again.. then everything was fine. I wonder if i accidently put the car in Manual instead of drive?