Ganny Knits a Spaceship, by David Gerrold

No internal divisions, so this is the third paragraph.

She meant that people who live in space live differently than people who live on planets. I’m not talking about the micro-gravity and the sense of confinement and the recycling of air and water and protein, the exercise regimen, and all the implants and augments, like bone-sintering and radiation-nanos and white-blood infusions, and all the other stuff that dirtsiders think about. That’s just mechanics. You live with it.

Entertaining short story about teenage Starling who lives with her grandparents on a space station in the asteroid belt. They are vulnerable to capitalism, betrayal and death, and Starling’s Ganny does her best to outwit them. Very cheerful in the end. You may or may not be able to get it here.

This was the sf book that had lingered longest unread on my shelves. Next on that pile is thirteen fourteen fifteen o’clock, also by David Gerrold.