I forgot the passcode to my iPhone 5 how can i fix it?

I tried to restore it from backup but it says i must turn off Find my iPhone.

When i log on from iCloud from my computer it says i have No devices therefore i can't remote erase my iPhone. IT DOESN'T SAY NO DEVICES ONLINE ITS SAYS NO DEVICES PERIOD.

Each time i try to turn the phone off it cuts right back on, it's not disabled and it is connected to Wi-Fi.

Will the AT&T store fix it or am i just out of luck?

You can reset your password: http://www.justtext.com/messageboards/20140127092428.html