Welcome @Izthewhiz that's great you found such a helpful pharmacy, we need more of those!
There's a @Pristiq section in the forums that you can hopefully find some more specific support.
In case you're not aware, you'll likely want to hyperbolic taper the lower you get as these drugs can get MORE difficult the lower mg you go due to how they work. We can get used to big drops at the beginning, but sometimes near the end we need very small drops.