Not willing to be spoilery here, but there is a thing on YouTube called "OotCast" where two guys play through the game, while discussing the lore implications and the foreshadowing with full spoilers.
When I first played through 47-51, I felt a little confused and drained by it all as well. Some of that undoubtedly had to do with the sheer fatigue of binging everything the way I had. Watching OotCast helped to piece together connections I hadn't made before.
Could be good to do in the last week before the next public release.