Ah man, you have way to many hard surfaces everywhere to be getting any really good results.
Step number 1 is to start treating your room. The rest will fall into place.
Well. I'm sittin' here trying to envision what that future might look like, unburdened from the past.

Dang! It's just turning my brain into salad.
I'm guessing the floor represents the dominant reflector.
We banished carpet years ago. Rugs represent fall hazards for my wife who broke her hip last year and has bad knees which contribute to poor balance. I'm concerned a rug will catch more sand and fur than reflections. Still, it will be interesting to experiment with the floor between me and the speakers. At this point, I can see where that might turn into roll it out for listening and roll it up for living.
Eh. I dunno, we'll see.
Walls. I have no idea where to start. But before we go there, I need to clear out my wife's cr,,, stuff

I need my table back. I want to recap the vintage amp this winter.
I've got to move things around so I can start a fire if I get the urge. I will make those adjustments first, then we can talk about where I might place absorption. That's what really turns my brain into salad.