Hey!
You can't really do much else here.
Those white pistils look like it's new growth on top of the buds. This could be from stress.
If you notice theres more and more white pistils coming up then you'll have to make a decision to harvest or keep waiting..
I would wait a bit more and examine her daily to see if more white pistils come out..
Harvest window opens when you start getting amber pistils(hairs).
Normally when there's 70% amber and 30% white pistils they're ready to start flushing but that's not always the case.
The best way to check is looking at the trichomes with a 60x magnifying loupe.
Clear trichomes haven't reached their full potency, cloudy ones are full of THC and amber are losing THC while gaining CBN.
So depending on your preference whether you want more of a head high or body high.
I normally start to look at trichomes when there are about 50/50% white and amber pistils.
I harvest when after examining and finding 70% cloudy trichomes and 30% amber trichomes.
For me that's a prefect combination, depending on the strain as well.
Have in mind if you use nutrients you'll need to flush the roots, watering only with PHed water or a flushing product for at least a week.
As for the difference between CLOUDY or CLEAR.. Clear trichomes look like shiny glass while cloudy ones look like more like plastic.
Good luck and Happy Growing!😃🌱🌿🌲