need help please

so its been a week since I ended with my toxic abusive relationship of 2 years. we used to live together and now aside from having to rebuild myself up and its daily struggle .I find myself now somehow missong this ugly person. I have lpts of things that belonged to him even his house keys. I am so tempted to call him or to simply go to his housr to leave all his things with him becuae I simply can't handle knowing I have some piece of him with me. so I need help breaking this down and maybe open up my eyes as to what I should or not do. please help 💔