Does karma apply in Bullying?

I am getting bullied by an Adult psychologically. Not a parent, but a neighbor. He has become an obsession and there isn't a day that goes by where in i don't think of him and the ways i am going to destroy his life in the future.

I thought about being the better man, and just forgive him. Let karma play out as they say. I was wondering, is karma real? Can you add moments in your life where in you thought karma did her job along with your answer please.

( I personally think right now that karma is made up by some person to suppress violence by giving people the delusion of 'Natural Justice'. I want to destroy the person before i die, not wait for some magical voodoo to deal with my bully) But, maybe i'm wrong.