I Dropped My iPhone, What Do I Do. Help FAST?

So, I dropped my iPhone 4S about ten minutes or so ago and the screen is totally messed up. It has like blue lines running through a black screen and it won't let me do anything. The only thing I can do is press to OFF button or the HOME button.
Is there anything I can do to fix it quick? Could I just leave it off for a few minutes or do I need to take it to the Apple store?

Does sending and receiving picture text messages cost data?

My boyfriend and I both have the iPhone 5s, with unlimited talk and text, but his data plan is much smaller than mine. He's currently away at Camp Lejeune for SOI training for the marines, and he only gets his phone on weekends, but can't connect to Wi-Fi. If I send him pictures, is that using his data? I keep getting mixed answers when I try googling it.

How to download latest version of itunes on an OS X Mac?

I have an OS X Macbook Pro. When I updated my phone and plugged it into the computer it said that it couldn't interact with the phone until itunes was updated to 11 or something like that. When I tried downloading that update it requires my computer have the 10.6.8 update, which I can't get because that requires a 10.6 Snow update. All I want to do is change the songs on my iphone

What has happened to my iPhone? - 2

All my contacts have been erased? I haven't deleted them myself, I have a secure password on that no one knows, I haven't updated the software or downloaded anything, it hasn't been dropped, ect. Basically I put my phone on charge and when I went to send a message I had no contacts! Is there a way to fix this?

How to disable iCloud sharing?

Ok so my ex-girlfriend and I shared my iCloud/apple id when we were together, she had it on her iPad and me, on my iPhone. She smashed her iPad screen a while ago so hasn't been using it. Since we broke up, a lot of pictures have been taken and videos etc that would normally be instantly viewable on the iPad. Forgot about that feature! I really don't want her to see them, she's getting the screen fixed tomorrow, so how do I go about stopping it?

Iphone Through Metal detectors?

Hello everyone so am attending a taping really soon in Los Angeles and am the only one going my taping is in universal citywalk and i don't drive so i can't leave it in a car other option would be to get a locker but my question do you think i could get my phone through a metal detector i have an iphone if that helps