How to get my iPhone safari to work?

I tried to jailbreak my iPhone 4 iOS 6.1.3 and it didn't work. My iPhone is not jailbroken, but the safari, email, and calendar app do not work at all. It's a blank screen when I open any of them. AND no videos will play on any other app. How do I fix it? Please Help! Please. I tried resetting it, restoring it, I've tried all of those but it won't reset or restore. I don't know what to do. Please, please, please help.

That's what supposed to happen when you jailbreak

You got the tethered jailbreak which means you have to plug your phone into your computer and then use a program to boot it up correctly but you need untethered which you don't need a computer to do that and BTW there's no in untethered jailbreak for 6.1.3.