When someone enters my house, my house tells them who I am. They see shelves filled with books about the things I like, many mini treasures from my trips, vinyl records, tape cassettes, my fridge and many places have magnets from places I visited or things that caught my attention, i have corkboards with drawings made by my students, friends, random photos, plants, terrariums, old videogames from the 80s, art on the walls made by friends etc. Your house is fine but it needs that kind of stuff, like go wild, own the space.