So, today, I opened an app that I created, because it has a fun jigsaw puzzle game on it. When I finished making the puzzle, suddenly my iPod touch would not return to home screen, lock, or shut down. So basically it can't do anything, except play the jigsaw puzzle again. And it will get dark, but it still won't lock. I don't have the money to buy a new one, and I left it on the charger for a while.
I also can't afford to have Apple take a look at it, or get it fixed. And even if it was free, the Apple store is far away from my location. Help!