How to destroy someone at school

Create a new social media account with an anonymous name and add all your friends.
Proceed to leak information of her with evidence if you have any.

Theres this girl in my friend group who is so so horrible, and i know of loads f awful things she's done that few people know about.

How do i tell people and ruin her, without anyone knowing it was me who leaked it

You don't. If she's truly nasty, she'll show her true colours to others sooner or later. If you're genuinely concerned about something she's done (ie: It's putting someome in danger/bullying/illegal) bring it up to whoever it concerns, but if it's in the past and minor it's probably better that way. There's no way to "leak it without anyone knowing", and the things she supposedly done may be exaggerations or rumors, you don't want to be known as someone who potentially lies and is cruel to other people, as that just shows that you're the mean one, not her.

Thanks for your response.
I know it may have sounded cowardly, so i appreciate your response a lot.
She has cyber bullied my best friend to the point where she developed an eating disorder, so its quite a sensitive subject - im not just being vindictive.


Also, the reason i hoped to keep it anonymous is because her mum is my maths teacher, and she will destroy me if she finds out it was me who exposed her daughter. Getting a good grade in maths means a lot to me, as im applying to study maths at cambridge

Theres this girl in my friend group who is so so horrible, and i know of loads f awful things she's done that few people know about.
How do i tell people and ruin her, without anyone knowing it was me who leaked it