It would be helpful to know what furniture you have that needs arranging, and what size bed you have as well. But not knowing that, I would put the bed on the long wall without the window with night tables on either side, and a low dresser under the window wall.

Thank you for your comment.
I still dont have any furniture. I still dont know what to buy coz i dont know where to put them!
I agree about the bed and dresser.
But what about the wardrobe ?

Oh, ok, I get it! No built-in closet! Ok, in that case I would change things a bit. I would put the head of the bed under the window, one nightstand to the right of the bed, a tall dresser on the short no-window wall and your wardrobes along the longest no-window wall.

@olldbobbi, that would be good, but I think there would be not enough room left between the bed and the wardrobe

@houssaon nice idea, I also thought about at the wall at the foot of the bed I put a flat TV and bookshelves, and at the same time I use the area between the column and the wall as a built in dresser and mirror (facing the bed). The entrance would be thru the gap between the column and the bathroom, its about 3.9 feet.

Soon I will start with paint I'll post pictures when this is done. I need to know where to place the power and electricity sockets know,

Are you building this room from scratch? In other words, this room isn't built yet?

It just has the walls, plumbing, and electricity tubes, nothing more, so I can make adjustments during this period

I need help in the living/dining room too. It is L-shaped, I still don't know how to place the furniture.

Are you able to place furniture in the white floor area ? The wall between the WC and bedroom has a window right in the middle.

A L-shaped wardrobe between the pillar and wall and the leg of the wardrobe on the entry door side to create a little dressing area.

If you keep this configuration with the WC, I would put an armchair and floor lamp in the window wall area for a reading nook. Then a chest of drawers on the WC wall. An armoire on the short wall. A low storage credenza under the window. Bed and night stands on the long wall. Two options for TV: on the chest by the WC or on the column (mounted or set on a swivel to view from bed or nook.) I posted all white items, not for style or color bu for function, since you didn't say what your style is.

@Dytecture yes the white area is part of the room, the window is in fact 2 windows, 1 in the bathroom and the other in the room.
@decoenthusiaste thank you for the pics, I was thinking about white with black accessories or little items, a black n white combination, a more modern style