Iterating well.
BE SPECIFIC ABOUT WHAT IS WRONG
"Make it better" changes things arbitrarily.
"The second paragraph is vague. Add a concrete example" produces a targeted fix.
USEFUL CORRECTIONS
"Too long. Half the length." "Too formal. Write as though speaking to a customer." "You missed [point]. Rewrite including it." "Remove the opening paragraph." "That fact is wrong. It is [correct]. Redo it."
WHEN TO REGENERATE INSTEAD OF CORRECTING
When the output started in the wrong direction entirely.
Correcting within the same conversation can inherit the problem.
HOW MANY ITERATIONS
Two or three usually reaches something usable.
More than that means the prompt needs rewriting rather than the output.
WHAT TO DO WITH YOUR CORRECTIONS
Fold them into the prompt for next time.
After five uses, the prompt produces output needing little editing.
THE HABIT
Correct precisely, and learn from what you corrected.