I have a bed, desk, bookshelf, dresser, nightstand, and vanity. 2 windows, 1 door leading to the hallway, 1 door leading to my ‘little room’ (its like a tuckaway.) and a closet door. Painting isn’t really an option.

Answer:
Reduce clutter. If you have any corners that point into to the room, cover them with a plant. Distribute furniture so that the weight is evenly distributed in the room.