Good to hear you’re better, but it seems weird that your symptoms weren’t caught earlier. Even a very simple questionnaire like the MADRS has explicit sadness as only one dimension. You would have been asked for lack of initiative/procrastination, stress/anxiety and negative self-talk. Sounds like someone didn’t do their job properly (unless you hid your symptoms from your family doctor or didn’t go, of course).

Fluid ounces on an Italian made moka pot?

Physician here. Sterilise in the strict sense you can’t without an autoclave, but that won’t be necessary. The professional method for disinfecting razors would be a bath in Barbicide, but a good scrubbing with a non abrasive bathroom cleaner and a toothbrush should already take away most bacteria and their hideouts. A few consecutive dips in 75% alcohol after that take away moisture and kill the rest. The razor still won’t be sterile, but it should be good enough.