trim leaves before or after cutting root?

not sure. please help, 1st grow, im days out from havest. its just one 15inch. going to dry it upside down by the whole plant. not sure to trim all the fan leaves and other leaves while its standing up right, or to trim it while its hanging upside down. please help. these babies look too good

15 inches?
What strain?

It's easier to trim it when you have harvested it properly.
For a good and easy to follow method:

https://www.rollitup.org/harvesting-curing/28072-harvest-time-tutorial.html

its a auto fruitatomic. the other is 24 inches, germ the same day, but one is at least a week or two ahead.

usually its easier to trim right after cutting the branch off. the leaves are wet and stick straight out. if u wait until they are dry to cut them, they will be folded over the bud and that makes it harder to cut. FYI

it makes no difference if you trim it upside down or right side up