CL
dont worry, you can do it !
I just went thur all my materials when I am doing spring cleaning for CNY, and just re do the scrap area with new shelves etc. From muji to ikea... wallet burnt big hole. then realise that i got stuffs from years ago, hidden... haha. But seriously, I think its good to remember this saying "What you havent been using for the past 1 year, throw or give away. Most likely you wouldnt be touching them again".
this is a very good rule... applies to everything. Clothings, toys etc.. not just for sb materials.