Register for class but no teacher has been assigned

I am a first year middle school teacher. I have posted on here about my classroom management struggles before but wanted to get some more feedback. I plan to resign within the next month. Non-renewal is a real possibility and I don't want that to happen. I plan to move by the fall and am not sure if I will go back to teaching after that.

Anyway, to my question. What do you do when a student simply refuses to do anything you ask? I have a student who runs around the classroom, screams while I'm teaching, swears, breaks my things, throws things, and refuses to work. I give assigned seats and he refuses to sit there. He has refused to leave the room when asked. Refuses to work and does what he wants instead. He will not participate. He won't even have a discussion about it. I tried behavior reflections and he threw it away. I have tried various consequences. I have contacted parents. I have given many detentions but the behavior doesn't change. I've taken recess and given essays to write about behavior. I'm thinking detention is just not the way to go but I don't know what else to try. I have tried getting to know him better and forming a relationship. I have tried ignoring the behavior like some have suggested but then other students see that as unfair. I have also tried rewards. Nothing seems worth it to him. His behavior affects the behavior of other students as well.

After all this, I do not believe he is a bad kid. I want to be a good teacher to him but feel like I don't know how. I believe he has great potential and is very bright. I feel bad that he hates me. That's not the kind of teacher I want to be but I also don't want to be a pushover. I want him to be happy in my class even if he hates the work. (My class is not his favorite subject)

I plan to observe some veteran teachers in the next few weeks but was also looking for any advice you might have since I have tried all advice I've been given and am out of ideas! Thank you!