Ok. Here is my absolutely awesome fun advice to first time new mothers in their first weeks: Sometimes you will have downs. And during those downs you might feel unproductive and think you’re failing (which you’re certainly not, but those hormones can be way louder than any sane voice in your head). And you might become unappreciative of all the things you actually accomplish. So, this fun exercise might help you shift your perspective. It worked for me & made me more grateful.
Note: I know that a better advice would be to criticize the sick system/society that makes a fresh mother feel “unproductive.” In the long run, I agree. This however is for the meantime, something to cheer you up. :) Also, as doktordab commented, in some cases producing milk is not all that “easy”.