Yuk
You got the room from "hell".
6.1 is going to be a waste of $. Too small for proper dispersion of sound. Speaker position impossible.
5.1 is most likely difficult as well.
If you repositioned the bed and dresser. Thus having the bed centered on that short wall. And then swap the TV and desk positions. You could create a possible 5.1 display. The walls to your right and left could be used for the surround speakers.
The only other option is to relocate the bed to the far wall on the left, and place the TV on the wall on the right.
Either way, the room size/shape seems way too insufficient for a 5.1 system with a good balance of LRC and surround speakers.