How do I stop being intimidated by the mean girls at school?

This... is a classic. Haven't you seen any Disney or Teen Nick movies? But in all seriousness, this is how it should go. First try to ignore them. I know you say it's not an option, but it does more than you would think. Girls like these are plastic bitches who only feel good when they hurt someone else. Their mean, insensitive, and will stop at nothing to get the... upper hand if you will. All they want is the attention, and I bet they'd crave a fight. So don't give it to them. There is a point in life when you will have to stop rising to the bate and get over it. If they try cyber stuff calmly try and get out of it, then if they are still mean on the net or phones, just save it on your computer or take a picture. Kid's get into serious trouble for cyber bullying. Second, try and talk to a teacher or parent. This may seem childish and like you are hiding behind them, but it's one of the safest ways, and can be completely anonymous. Also if you still have the pictures then you can use it as proof for if they try to lie. Finally, if none of this works... Call 'em out. Tell them their being rude, mean, inconsiderate bitches who need to get over themselves. Don't be overly mean, just tell it straight. Let 'em know how it is. Tell them how what they do affects you and tell them you wont take it anymore. Don't threaten them or insult too much, just be... honest. Then go on and ignore them. They can't do anything to you unless you let them. Why would you care about their thoughts or words anyways? Just keep in mind that to take down a ***** like that, it usually means you have to be one. Try not too, cause you seem nice. Wouldn't want you ruined like that.