Is she too far gone or can she come back?

Has water intake slowed a lot recently? If so harvest time is coming. If not I would suggest upping your nutes for a few feeds, your buds look like they have a week or so left so you can probably ride it out at this point. How do your trichomes look? Cloudy or still all glassy? If you are still 60-85% glassy try upping nutrients, if say 50+% cloudy then ride it out mate.