Economics should be defined in terms of what it is about. It should be about how people produce things, how people exchange them, how people earn income, how they pay taxes, how the government provides infrastructure with tax revenue, and how it conducts monetary policy. The subject has to be defined in terms of the object of inquiry.
If one undertakes retrospection of the day's events, one must do it regularly at the appointed hour, not fitfully, not doing it today, neglecting to do it tomorrow and the day after and then taking it up again on the fourth day. Such irregular practice is not conducive to the confirmation of the habit of retrospection.