Getting going is a separate expense from working slowly. Plenty of people move quickly once they are in and still lose forty minutes in the gap between deciding and starting.

Knowing that leaving it until Thursday went badly last month does not change what Monday feels like. The memory is there, but it turns up flat, with none of the pressure still attached to it.

Here is a short way to hold the whole difficulty: the now in front of you is too big and the later is too small. It fits in your head at the moment you need it, which longer explanations do not.

If the internal clock is not there, put clocks in the room. Somewhere the child can see without turning round, a timer on the desk, one on the wall by where they work.