It might be worth exploring your relationship with things, and your feelings around throwing things away, and maybe evaluating how well those ways of thinking are serving you.
My ds has a very different relationship to things than I do. Asd plays a part in his attachment but I am, I think, more detached from material possessions than most people. I itch to clear out the “junk” from his room but to him these things hold memories and other attributes. We both have to stretch a little bit to understand each other and find compromises we can live with.
I’m not suggesting that you have asd at all. But there are different ways of thinking and feeling about stuff, and trying to discuss it with someone who doesn’t share your perspective, or at least understand that there are other perspectives than their own, can lead you round in circles. We have lived in a throw-away, single-use society for a long time and only recently the concepts of reusing and recycling have gained traction.
Having a creative mindset, where you can see multiple potential uses for items that other people would throw in the bin, can be a blessing but also a problem.
I have found the container concept a really useful rule of thumb for making decisions about what is worth giving space too in my home. The link is to a podcast about decluttering, not prepping, but as I said above, being able to keep track of and manage my preps is a key part of prepping for me.