I realized one thing when had that «bad days» at work.
One day everything goes easily and without effort, another day you cannot even get up in the morning and literally forcing yourself doing at least something having no motivation at all. At the same time somebody next to you (let’s say colleague) has better mood and gets things done faster. You think: ok, they can – so do I. I will be strong, push myself, and, in the end of the day I am a strong woman, not some kind of pussy *strong strong*. Ok, for a while it goes well with this temporary forcing impulse, but very soon the same apathy covers mind again.
Then I’ve got the secret of these “easily doing everything” people.