" your room isn’t useable for serious listening"
if you pull the curtains, move the sofa by the kitchen back 4 feet (temporarily, when you are "in session") you'd be fine. I'd move both speakers to the right, towards the kitchen 10" or so, until the door, and also out from the wall towards the room at least 10".
You would be slightly better off on the opposite end of the room, where the dining room is, but that would be challenging with all the furniture.