Breaking Up When You Live Together

My two year relationship has just ended, tonight, and we live together. He is not physically abusive, but he lives “loudly” and makes me uncomfortable on purpose. He knows that I will make myself silent and small, and isolate myself if I feel uncomfortable, so he makes sure that’s how I feel by stomping around, slamming doors, singing and whistling loudly to himself. Talking out loud, laughing extra loud. Generally making himself known - and making a lot of mess everywhere he goes, so that the communal areas become unusable for me. How do I cope with having to live with him, and amicably separate our things to pack, while I organise moving out? I feel so uncomfortable and anxious being at home and around the behaviour, that I can’t think clearly to make the bigger decisions. It is a volatile environment- even though I don’t fear that he will physically hurt me. Any help would be much appreciated