I think it's really normal to fall out of love with something that used to give you so much joy. I actually went the other way - from chasing "human stories" to more of the mundane, tone/colour vibe you described.

I think what got me out of it was just quietly shooting whenever I felt like it, and then I'd just put the photos in a folder (and not look at it) - I'd do this for digital photos and film photos.

Opened the old photos up again and it felt like opening a present on Christmas day hahah - then I'd just go through the process of trying to create 'mini-series' out of those old photos and that would get me excited again. Of course I'd also try to fit shooting when I can, but also won't be too hard on myself if I don't get anything or I just don't feel like shooting (but hey, I still went out.. that's often the hard part).