Time Out

So today I tried a new thing with Isabella. Time out in the corner. She does not like to listen. Spankings don’t seem to work. “No” seems to mean nothing to her. So I decided to give her time out in the corner against the wall for 1.5 minutes. She stayed for the most part but she kept turning her head, laughing. She thinks it is a game. I kept a straight face for the first 3 times she did it, but could not help myself any longer – I busted up laughing. So much for disciple. Please tell me that it all gets much easier. Please? Anyone?