No No No,,,, you've got it all wrong. What you really need is the hot looking guy next door to come over and help :-)

Seriously though.... maybe this might help
https://www.youtube.com/watch?v=hao2BlBvYTk
Make sure you measure on your other things you have already tried how far they are going into the wall, then get an appropriate length drywall screw. Do as one of the other people said and hang the picture on two hooks at the 1/3 points of distance on each end of the frame.

Ok, so I splurged and bought a stud finder. It turns out I was not on a stud. I have tried to nail into other parts of the wall and can't get anything to go in more than 1/4 inch. What gives? I am beyond frustrated right now.

Is the wall in question an exterior wall? In Florida, they're usually made of cinder block. I've had all sorts of trouble with hanging pictures in that stuff. My favorite screws for the job are called Wall Dogs. BUT if it is a lightweight picture, those Ook picture hangers are awesome because all they need is the drywall.

:)
3H