IMHO, they are the same..... and both are matters of perception.
If you understand that, then you know when you are playing bad. I certainly know when I am playing bad. Then I take a day off from poker, and start in again with a fresh mindset. That's the plan anyway.
Personally, I use play money poker, RUSH/ZOOM style games, to wear down the bad streak I perceive myself to be on.
And yes folks, I still do play play money games. Real play money, as opposed to fancy play money.