Buy some blue tape painters use (which is easy to remove). Walk through the house putting a good visible piece of that tape on your stuff. Hire professional packers to box up all that stuff and move it out quick. If you take some of his stuff by accident don’t sweat it. It can be returned. Then you can actually move on. Rage is natural but also instructive so learn your lessons. Like I’ve mentioned before, there is a wise old Buddhist saying: We are not punished BECAUSE of our anger. We are punished BY our anger (so that we pay attention to lessons to be learned).