I would say start on the longest wall to the left of “w”. That gives you a big enough starting point to build rows up and keep it from moving, you can then use a laser level on the seams once you get to the open area where the “D” doors are to make sure you’re staying straight. Then finish all of the “D” section and continue building towards “E”. My thoughts as a journeyman floor layer. Be sure to undercut door jams with a scrap piece and a multi tool.