From what you described, I would say that's unhealthy. Which floor are you on? Can you open windows or sliding door if it has a balcony to air it?

To remove excess humidity, dehumudify either with AC (in dry mode) or with a dedicated dehumidifier from brands like Firenzi, Delonghi or Stadler Form's Albert. For window use, if you can get a higher CFM one like 8" instead of 6" that might help.

Although not practiced in a home, those blue lamp thingy that is seen in McD or KFC near the washing area might help if placed in the bathroom above say the mirror. That will help kill mould spores.

Used Aircon would help the temperature more dry.

In toilet just install exhaust fan at ceiling or face to window.
Inside wardrobe can buy Hippo for suck up water

Your exhaust fan need to run continue another 15-20min after you  comeout. A short period doesn't help. Reduce the flashing bath water or wet area by instal the screen or separate the bath area.

For wardrop, get the hippo or from daiso that absorb moisture.  It need to replace after full absorp. Or a electrical heat dryer which I not sure where can get anymore. I m using this.

For room, just aircon is enough.

Cloud be small leak on the floor above. I doubt toilet humid can build mold with exhaust fan running. My bath room don't have exhaust fan, but window are 30% open all the time. So far OK no mold for 3+ year now.

Mine is only 2x2

Doubt it do any help. What is on the top?  Your plaster ceiling installed new?

Your house humidity is very high. Must find out the source then only you can resolve your problem.
For temporary measure, you can put some charcoal at those high humidity areas 1st.

It is raining season now. Everyday is high humidity. It is 2x the effort to get rid it.

Also if your bathroom is in shading area which is out of sun path, also Need 2x effort.

I have this kind of area which is always wet. Algae and mold is alway there.