Sustain a wordgasm.

[LaRascasse]

A wordgasm is essentially the polar opposite of writer's block. The words just flow to your fingers and then to your screen. I spent 3 days on and off churning out one crummy page of a story and then polished off 2 pages in an hour when the wordgasm hit. It hit out of the blue and left me out of the blue as well.

Any idea how to sustain it?

 

[Etaski]

Minimize distractions and drains on your time (as an introvert, that means I don't talk to people, either).

Keep the music playing, if that helps.

Walk at least once around the house every hour, get a drink of water, maybe a quick nibble of food, keep thinking.

Sit down again and continue.

Repeat.

A couple of times on good days I've managed to keep it going for 6-10 hours. Usually finished anywhere from 12-20 pages I was very happy with. These are special, though (as soon as another life demand comes up I need to deal with, the spell is usually broken).