no start =[

so i did something eally stupid the other day. i was driving my car giving it a little gas bringing it to about 5500 before id shift. i wasnt paying attention and accidently put the car into 2nd from 3rd instead of 4th. the car reved up, shut off and now wont start. when i turn the key all that happens is the start turns on. it sound like its not even grabbing the flywheel to turn over the motor, it just spins. anyone know what i screwed up?
thanks for any help.