TS1702 My iPod apps, even the apps provided by apple are shutting down randomly. I can access them but they shut down shortly after I do so. What's wrong and how can I fix it?

Question

My iPod fourth genereation is closing apps down randomly shortly after I open them. Even the apps that were provided by apple won't stay open long. I've tried everything they've suggested and nothing has worked. What's wrong with my iPod and how can I fix it? I even reset the entire thing to factory settings and it did nothing.
Also, my back camera won't work most of the time and when it does red scratchy lines appear all over the screen and the picture won't come out clear.

Answer 1

I think I fixed the apps, though.
*Turn off your wifi and only turn it on when you want to use it
*Lower your brightness
*Turn off "Push" on notifications and mail and turn on "Manual"
*Return to your home screen and then double click twice and tap and hold one of the apps you've previously opened, when they jiggle tap the red on each app until fully erased.
*Don't use your ipod while it is charging, allow at least a 10 minute charge (fully charged) before using it again.
See if this helps(: ... I still have no answer bout the camera issue. I might be going to apple soon so we will see then.