I'm renting an old Victorian that hasn't been well cared for. One of the major issues I've been fighting is the bathroom moisture- due to lack of ventilation and lack of caring, there is some mold in the bathroom.

The drywall mold is my landlord's problem, but there is some caulk around the tub that looks awful and looks like it needs to be replaced or otherwise dealt with. Is this something I can do myself? Right next to the caulk on the tub, there is a 2.5' by 3' patch of moldy wall and another slightly smaller patch.