I accidentally restored my Iphone and its broken, what do i do?

I restored my Iphone and then suddenly stopped the restoring half way through. Now, every time i turn on my Iphone it blankly says 'RESTORE FAILED'. I can't get on my Iphone and nothing works, i can't even turn my phone off or charge it.

My best advice is to take it to the store you bought it from

Try to put it in DFU mode

Entering DFU Mode (Official Instructions)
Plug your device into your computer.
Turn off the device.
Hold the Power button for 3 seconds
Hold the Home button without releasing the Power button for 10 seconds
Release the Power Button but keep holding the Home button
Keep holding the Home button until you are alerted by iTunes saying that it has detected a device in Recovery Mode

Also use a different cable wire and check your internet connections.