Some re-arranging and thinning out is definitely in order, I think I'd be doing it wrong if I had to replace them with more storage... Lots of textbooks I don't need as reference anymore or clothes that fit me well when I was 30 lbs heavier, oops. I guess that's more basic-level decluttering and not anything I need Marie Kondo's wisdom to help me let go of lol.
But her show still makes great motivation! Watching her (or the new Queer Eye, for that matter) is always so inspiring!