I like two principles in your piece: just start writing, and you can always throw it away.

I don't find prompts helpful, because my mind often seems to be a riot of ideas. My problem is taming them. And then beginning a piece. One method I use to get over an awkward beginning is to outline. There's no obligation to be eloquent in an outline. The words flow without that pressure. All I need is Roman Numeral I, and I'm off.

There is a lot of throwing away, though.

An interesting take on creative block.