As she's only entering pre flower. I'm afraid you've missed your window to get in a defol before PF.
After PF is over. (Youll know, as she'll stop putting on height, "the stretch", then you can go ahead and open her bud sites up to your light.
Going down up and each node. Remove all major fan leafs. Making sure to leave a set at the very top. And also any leafs at the bottom can stay as they not blocking out light
Feel free to DM me when you get to that point. And I'll assist more then. But for now, it's best not to disturb the Pre flower process
Good Growing