A few suggestions!

1. Even though your wall paint is not insanely dark, even the slightest bit of depth will really make a room feel darker. We would suggest going with a lighter white or off white (SW Zurich White, SW Snowbound, BM White Dove)

2. We would swap the large dark area rug and the dining area with something lighter and brighter. Maybe a jute or a nice pattern in a light colorway? Our go to for affordable rugs is rugsusa.com or overstock.com

3. It looks like your curtains may be blackout curtains? Since you already have the blinds for privacy (and unless you sleep in this room and need it to be pitch black) going with sheer drapery panels that are white and consistent across all your windows and doors may be nice. You can find affordable ones on amazon.

4. Since your two largest furniture pieces in there are a black/dark brown, that will automatically make the room feel heavier. We would add some white and cream throw pillows to brighten up the sofas! Target or etsy are our pillow vendors of choice.

5. Finally, the most obvious suggestion is to bring in more light! Add a small side table next to your sofa and bring in a table lamp or a floor lamp.

We hope this helps!