Not quite sure what you mean by your reply tbh Rosa, but if that is your intended layout in the photos, that is not how most of us would set that out.
Personally I would have a centre line down your hallway.
It would give you two equal cuts off the centre line, I would not have two thin cuts down each side of one tile like that, or thro the doorways.
Again it would be centred as near as possible.
The way you have it, you have unacceptable sized cuts everywhere, which are also extremely difficult to do let alone keep in one piece.
Try moving your hallway half a tile over, similarly move everything down half a tile, this will give you much better cuts everywhere.
Ok there may be the odd small cut here and there, but there is always a small compromise to be made.
As it is, as a diy project, it will be a uphill battle all the way.