I was bullied as a teen. I was the shy and quiet kid so I got picked on relentlessly. I was even teased in front of one of our teachers, who laughed at me as well. I used to eat lunch by myself and read, pretending that it was a choice. I don't look back on those years fondly.
I found I had to work towards letting the hurt and anger go for my own benefit. It takes time and it's hard, but it's possible. I think that is how you get revenge.
I'm sorry you had to go through it too.