Guest/visitor account, block access to folders on partition D:/

So tomorrow we're leaving on vacation for a month and we're pretty much completly rented out our apartment on airbnb for that time. I am preparing my PC with guest/visitor account so the guests can use the PC to look something up on the internet or watch movie and play some music from my music/video folders. I always have 2 partitions on windows, C:/ (on SSD) for windows/apps/games and D:/ for data. Its the first thing I do after fresh install is move all document/picture/video/music folder location to my D:/ partition which on my 2 TB Harddisk.

So now I made this visitor account using the elevate prompt with this guide:
Guest Account - Add in Windows 10 - Windows 10 Tutorials

Yet in that visitor I still have access to all folders on D:/ partition, including documents/pictures folders. They can have access (like I said) to downloads, video and music folder. But not to my pictures and document folders. How do disable access to those folders?

So when you restrict access to drives, it is for the whole drive. Ok that's fine, no movies/music for airbnb'rs. But how can I disable access to the D:/ partition only for visitor account? I can only access the group policy editor when I am logged in as administrator (under my own username), and now my own user cannot access D:/ anymore unless I change it back again. For the time being its ok, because I wont be home now anyway, but is there a way to only block it for the visitor account?