Do you write every day? Not typing or texting, but composing ideas and narratives and lines of poetry?
Earlier this month, I sat in a coffeehouse for almost an hour — during a late lunch break — and all I was able to produce was a 15-line sketch. A rough sketch, but the general motif and elements of the composition were represented.
The challenge of writing everyday is particularly rough when involved in knowledge work all day long. In my case, the mind is revved to creatively solve problems at the office and with internal and external clients. And for an hour in the afternoon, the part of the brain required to compose a few lines of poetry is so exhausted that the task is herculean.
Still. The discipline of exercise is part of the process. Keep training. Keep writing. Drink more coffee.