Fists work best in the OP’s case!

I am not a native speaker so I am not sure if I used a correct term. The problem in this bathroom is a bit of mold on the ceiling near few edges. I used an anti-mold agent and I will use anti-mold paint, but that is only for symptoms. Other than that I removed glass separator from a bathtub, because no-one really showers there standing-up and mold started to form on the ceiling over the glass separated section and there was also a mold on grout between tiles. I will make a bigger cut in the doors for better ventilation, but I think of adding a little quiet fan that would blow on the corner with the mirror visible in the photo, the mold forms in the edge there. There was not a lot of it, but it would only get worse.

The ceiling needed drying and removing loose material. Now I already filled it with around two or three layers. I needed also to adjust electrical connections a bit as well.

I am not well versed with construction/renovation work, but I like to think I can handle some work.