No need to plot revenge.
When people have wronged you, focus on getting back on track:
-Use your frustration to fuel your creativity and determination.
-Become the best in what you choose to do next.
-Concentrate on the things that make you feel good.
-Spend time with people who care about and support you.
You'll put "He Who Shall Not Be Named" out of your mind... and when next you meet, you will have forgiven that person. And feel better for it.