You probably busted something within the screen you will need a replacement device. As for your messages I'm not sure if at the store they can route them, least the sms but your facebook and twitter you can get online of course.
Try doing a master reset through the hardware, and I would back up everything from your SD card on your computer just to make sure the card isn't corrupted.
So on my Galaxy s4 I know how to set up a custom sms/mms tone for individual contacts. HOWEVER they are always the same tones listed. When I create or download any notification sound it won't show up on the list when I try to make it a custom but it will show for my default list. Apparently I...