This is my first time using an analog camera and i finished taking all the pictures in my roll. I tried to rewind using the instructions from the manual but realized i stopped at pic 9 or something. I then pushed the buttons again except it unrolled the film i think? My film frame counter has returned to 36 instead of the S it should be showing, but if i try to rewind again it doesnt do anything. Also, there is a little film advance indicator window and i think its showing me the same thing as when i loaded the camera. What should I do? My camera is a Nikon F-401x if that helps.