Emotionally and Physically Protect Yourself

Prevention is better than cure, so try to never let people attack you in the first place.
try this steps
1. Don't let people walk all over you. Don't be rude to people for no reason, but don't laugh it off if someone does something mean to you. That only tells them it's okay to do it again. Be able to stand your ground.
2. In the event that you get a crush on someone, try to avoid long, passionate love notes. These usually tend to scare people away and give them the impression that you have an obsessive personality. Instead, consider writing a brief note, such as, "I think you're really cute and I like you, do you want to go hang out some time?"
3. Always be on guard. There can be some real jerks in school. People may be targeting you.
4. Don't put complete trust in all of your friends. When you're in school, the social group that you're with will probably change. Don't completely cut yourself off from your closest friends completely, but be careful. If you have a friend that you hang out with sometimes, but aren't really close with, don't tell her anything that you wouldn't want the whole school knowing. If you have a friend that likes to talk behind their other friend's backs, keep in mind that she can be talking about you behind your own back, too.
5. Stay on top of your homework. Despite its boredom and tedium, it really is better for you in the long run. You won't need to repeat semesters (or even entire grade levels) if you can stay on top of your work.
6. Don't leave your things laying around in front of other teenagers, especially if they have really personal things in them [i.e. your purse]. There are some people who will dig through your stuff the very moment that your back is turned and read whatever they find.
7. Don't be persuaded into doing something that you don't feel comfortable with. If you're at a friend's house and everyone is having a drink, but you don't want to, that's okay. I've been there, and believe me, getting drunk and waking up the next morning remembering all the things you did is NOT fun. Not only that, but it takes a teenager just two months of regular drinking to do permanent liver damage. It takes an adult ten years.
8. 'If you're at a party, don't accept a drink from someone else. Don't leave your drink unattended. Someone could slip something into it and you would never know (the 'date rape' drug is completely tasteless). If you're going to drink, please don't do it at parties. If you get drunk enough, you're leaving yourself very vulnerable to all kinds of things. If you don't think you can gracefully say no to a drink if offered, just carry a cup with water in it.
9. Don't get into cars with people you don't know very well. This goes for girls and guys. Just don't do it. Even if you know them kinda sorta from school or somewhere else. It's just not safe.
10. Always wear deodorant and brush you teeth really well. Don't forget to brush the back of your tongue, that's the place that causes icky breath! Also, wash yourself everyday.
11. Don't let other people hurt your feelings. Just because they call you ugly or stupid or anything else does not make it true. Chances are, they're probably just one those people that gets pleasure out of being mean.
12. For girls: Some boys will say anything to get into your pants. Don't be afraid to say 'no' and don't be feeling guilty into doing something you don't want to do. Just because he says he loves you doesn't make it true. And, odds are, if he wants you to do something you're not comfortable with HE DOESN'T REALLY LOVE YOU. You want someone who will love you for YOU, not your body.
13. If you have had sex and regret it, don't feel guilty. Don't be afraid to talk to a parent or another adult you love and can be open with! This is always a damn good idea. Also, know the facts! A few quick facts: Douches do not protect against pregnancy or STDs (STIs), condoms aren't 100% effective, and neither is the pill, having sex during any time of the month can result in pregnancy. Check out the Woman's Health Matters link below.

some tips
* Tune out the rotten things people say.
* Have someone you can trust and talk to. A parent, a relative, a counselor (remember, counselors by law cannot share what you say to them with other people, as long as it is not something that's against the law, such as a serious death threat).
* If you are being harassed in any way, don't be afraid to tell someone!
* If you have been raped or assaulted (this goes for guys too), contact the authorities immediately. This is not your fault.
* Lift weights and become physically fit. Not only is it healthy but people will be scared of you.
* The most valuable thing you can have is self assurance. Acting vulnerable to get attention will only ever get the wrong kind- why are you taking care of yourself if you're acting like you're not worth it?

Remember!!!

* These are just suggestions. If you have a serious problem or need help ask for help from a professional or parent or other adult.