Here is a great article on what you should declutter each month for the new year.
Getting started: Turbocharge your decluttering.
January: Kitchen and pantry. February: Home office — digital documents and papers.
March: Clothes and accessories. April: Bath and beauty products and medicine cabinets
May: Laundry room, linen closet, cleaning supplies. June: Family room, playroom, media, art and schoolwork.
July: Yard, shed, garage and tools. August: Photos.
September: Mudroom, entrances and junk drawers. October: Dining room and entertaining supplies.
November: Hobbies and crafts December: Holiday items and decor.
Read this artcle about each month and habit to cultivate. https://www.houzz.com/ideabooks/58173213/list/your-clutter-clearing-plan-for-the-new-year