If you find a lot of old materials in your craft room that are in good condition but you know you won't use them, get rid of them. You don't have to throw them away - instead you could donate them to a charity that collects art supplies for children going to school for the first time. There are also community art programmes that might benefit from them.

Doing this will bring even more joy to the pleasure of creating beautiful things (and you will have gained back some space to do what you love).