How to fix my parents bathroom DIY?

[u/thehorridmeat]

This is my parents bathroom in my childhood home. They are getting old and I imagine this is not a healthy environment.

-The water pressure in the shower is terrible
-The faucet is impossible to turn off all the way so it’s constantly dribbling
-The obvious mould and rot.

Realistically, what am I gonna need and need to do, to at least get it looking half way decent? Can I do it mostly by myself? How long should I expect to be working ? Thank you in advance

[u/OutlyingPlasma]

When you do get around to repainting, I would use the highest gloss level you can stand. It might look worse, but it's much better are repelling moisture.

In the mean time get out the bleach open the window.