I'm going to get my revenge against the popular kids
What have they done to make you want revenge?
They made fun of my depression and they used it against me.
I'm sorry you're going through a bout of depression. Sometimes depression can make you angry, but it's wrong to exact revenge upon someone.
So they should just be allowed to insult people who are depressed? Fuck that.
It is wrong to want revenge you could get in trouble if you hurt someone. Have you told a teacher they might be able to help you find a counselor to work out how you feel.