I want this D to be over so bad. I am starting to hate him.
^^^^This is defintely not detaching I bet you knew that.
Why do I think that you already know what you ought to be doing?
The source of your anger is fear. Feel the anger, watch where it comes from, and understand it, track it back all the way to its source, but don't identify with it. You are not it. It is an emotional pattern that tries to take over, and feeling it, watching it, and understanding it means it loses its power to take over. It's like a demon that can only live if you fight it or if you identify with it.
I wrote something the other day when I was thinking about this metaphore of negative emotions being demons.