Right. Your problem is that you don’t get enough time to write. And when you do, when you could devote a chunk of time to it, you either feel obligated to do something else – or you feel tempted.
Put this in your diary. This coming Sunday 22 June, from noon to 2pm, you’re meeting me. Write it down: 12-2, coffee with William.
For this to work, the coffee must be at your place and I must not come. If you schedule this, I promise I won’t turn up.
So you might as well write for the two hours.