Hmmmmm. This a weird 1. Your leafs say its done but your pistils look far from done.
The whole dead thing, idk where he's getting that. If u have enough healthy growth left it'll be fine.
Bit hard to tell but it looks like it's only been flowering 6 weeks from what I can tell from your diary. Maybe you weren't feeding enough idk y you have such huge die off when your buds look like they need another 2 weeks cooking.
Idk how the trichomes look, if they are all cloudy then get ready to harvest with looking at them pistils they shouldn't be so long and still a few whites. They should be curling into the bud, so seeing that, I'd say strip off all dead leafs and have a look at what's healthy and try keep up the feeds. If the leafs stay healthy or even do a ppm test and see if she's still eating. Idk.
Good luck.