I can easily focus on finishing my tasks.

Starting and finishing are separate skills, and most people are only bad at one of them.

The last tenth of anything has no glamour in it. The interesting problems are solved, the shape is clear, and what remains is tidying — the references, the follow-up email, the box that needs taking up to the loft.

Which is why houses have unpainted skirting boards for years.

Finishing goes better when it is treated as its own job with its own hour, rather than as the exhausted tail end of the good part.