Nokia Lumia 520 have internet?

You know how like some phones have internet wherever you go?
I don't know what its called - Its not like Wi-Fi
its like wherever you go, there's internet on the phone
like iphone has that
Does nokia lumia 520 have it?

99% data usage in 24 hours of new billing cycle?

So last month I received the "You have used 65% of your 2GB data plan allowance for the bill cycle ending on 04/26/13." Which was odd because I had received it pretty early in the month, on the 10th. My data usage involves maybe 10-20 minutes a day on data which is just quick scrolling through facebook, instagram, and twitter. The rest of the time I'm on Wi-Fi. I've been doing that since I first got my phone (Iphone 4S, running through AT&T) and I've never received a text like that before. Well, I began to use my phone more scarcely; tiptoeing around, only using data when i "needed to" and all was well. Never got a 90% text message from them.
Yesterday was 4/26/13, the last day of last month's billing cycle. So I felt a little freed so I used a little more data. Yesterday I believe I used probably about 25 minutes on facebook, instagram, tumblr, and twitter. The rest of the day was spent on Wi-Fi. Well I go home, sleep, and wake up this morning- the first day of the new monthly billing cycle and receive this text: "You have used 90% of your 2GB data plan allowance for the bill cycle ending on 05/26/13." How could this be? I can't check online because my cousins pay for my phone, not my parents. This is also another reason I really don't want to go over. But I don't know if I can go an entire month without checking things, etc.
My cellular data usage doesn't reset automatically in my phone and it says "Sent: 565 MB Received: 5.2 GB" and I know that yesterday it said 5.1 GB. I've had this phone since November. Also, I thought it might be wise to call the *DATA# number to get the text message stating just how much data I've used or whatever, and I received a text message from AT&T saying "We're sorry. Requested information is currently unavailable. Please try again later." I don't know what to do. Please help!

Added (1). Well yes, but ever since 9:30 pm last night I've had my data completely turned off.

I can't download iTunes onto my laptop?

I got an iPhone 4s forrm birthday which was yesterday, and I wanted to put music on it. So I tried the drag and drop method by connecting the phone to my laptop and dragging all my downloaded music to it, but it didn't work. So I researched and found out that I need iTunes on my computer to do it, but I tried to download it and it didn't work. This is what happened:

I clicked run, and it came up with the 'Welcome to iTunes' window. Then I clicked next and then instal, and the installing window was on my screen for literally 2 seconds, and then it came up with this message:
The installer encountered some errors before iTunes could be configured.
Errors occurred during installation. Your system has not been modified.
Please run the installer again, or click Finish to exit.

So I tried it about 3 more times and it keeps doing the exact same thing. Now unless there's any other way to put music on my iPhone without using iTunes at all, I really need help with this.

Why is my iphone 5 safari history found in another person's iphone 5?

Both my mom and I uses Iphone 5. I had let login to my itunes in her phone to let her download stuff and I didn't log out of it but i don't use iCloud either. So today, my mom asked me to help her search some things on the internet and passed me her phone. I was surprised to see all my current history in her phone. I tried deleting the history but it was still there. The only way i managed to get rid of it was to delete the cache. It was really surprising as she had the phone for 3 months and I'm afraid that she might have actually seen some personal history in my phone. She is an IT idiot, so i doubted that she had actually planted a bug onto my phone to spy on me. I believe it was something to do with the itunes account but could not verify anything. Has anybody encountered this before? I'm not sure if logging out of itunes on my phone will break the connection, i do hope that somebody can help me fix this.

Do my photos not get many likes because I'm unattractive?

These photos were taken with an iPhone. I'm not wearing any makeup and my hair was messy because it was windy outside.Am I unattractive? Please be brutally honest. I don't get many likes on Facebook. Even a lot of my friends don't like my photos. Most people who like my photos are Asian like myself, but I find it odd because I attend a predominantly white high school.