On the closet with the medicine and stuff, my first thought is you need plastic drawer units like this
https://www.amazon.com/Sterilite-205...lastic+drawers
or this
https://www.amazon.com/Organizer-Min...lastic+drawers depending on how broad you want your categories. Then label them with either a label maker, sticky labels, or just little papers taped on. For example you might have cold medicines, cotton balls and q-tips, supplements, etc, as categories.
You might then be able to move some of the stuff from your drawer pic into that closet- there is a lot of unused space there.
As for the clothes closet, what is on the top shelf? How often do you use that stuff? And what about the blue drawers underneath- what is in them?