Beat the effort you once considered enough.

The effort level that once felt like plenty was calibrated to your old capacity, and capacity moves. Left unchecked, that old sense of enough becomes a ceiling you never chose, because it still produces the feeling of having worked hard while producing less than you could.

Ask whether what currently feels like a full effort is the same amount that felt full two years ago. If so, the standard has stayed put while you did not. Move it slightly and see what happens.