I know the feeling, Lex. When I was younger, in my 20s, I went through a phase where I kept everything my little brother wrote or drew. I finally chose one of his drawings and framed it. That allowed me to get rid of some of his other papers. I too have too many papers but recently got rid of boxes of them, mainly banking and credit card papers from years and years ago. I don't know what is right amount of time. It took me decades to get rid cards people had given me. Ii hung on to them trying to prove to myself and others that I was loved. It was a hard process on some of it. Now that I've come to this site and gotten support, it is much easier to let go.