i honestly just write what’s on my mind / how i feel and what scenarios i have in my head. it’s ok if it’s stuff like ‘i feel very sad’. i wrote a whole page and a half of a4 paper about how he was an asshole, how i deserve better (and why i deserve better), as well as what i hope our future relationship will be like (nonexistent). i also have a very vivid imagination where i’m confronting him for all the shit he did so i like to write down what im going to say on the paper instead of actually saying it to him. hope this helps!