My iphone 4 battery drains randomly?

I make sure all of my apps and tabs and everything are closed. I've turned down the brightness. I've tried so many things but it still drains really fast sometimes. And other times it doesn't for some reason? What could be wrong?

Is it normal to have a girl crush on a celebrity?

I'm a girl who has a girl crush on a celebrity. Her name is Troian Bellisario. She stars as Spencer Hastings in a popular television show called Pretty Little Liars. She's such a gorgeous woman and she's my role model. I would sometimes stalk her (that's what everybody does, right?) She's my wallpaper to every device I have (computer, iPad, iPhone, etc) Is it just a phase or I really need to talk to someone about this?

Added (1). Everyday, I would always think about her. Sometimes, I would catch myself just staring at her for no reason.

Resetting my iPhone with iTunes?

Whenever I plug my iPhone into my laptop, itunes asks me if i want to "Setup as a new iPhone" or restore a backup from my last iPhone. I want a quick way to get rid of All of my pictures on this phone. If I click setup as a new iPhone, will iTunes remove my phone carrier?