Please don't use SWIM/third person/disclaimers etc. These sorts of things will not hold up in a court of law or help protect you from law enforcement - if you're really concerned and want to avoid getting in trouble with the law, avoid mentioning purchases of *large* amounts, dealing, trafficking etc, use a different email and username on drug sites to other sites you use, and consider using a proxy to access them - these sorts of things can help protect you, SWIM/disclaimers/etc don't protect you in the slightest.
Beyond that, SWIM/disclaimers/third person talk all look silly and clutter up the forum so we don't allow them here, as such I've removed the disclaimers from your posts.
What are you going to be taking on the 31st? I've suffered from visual snow most of my life, though during periods of heavy stimulant use or smoking a lot of weed I tend to find it gets worse. After taking phenethylamine psychedelics like the 2C-X series I also find it tends to worsen..
However, that said, when I've taken 4-AcO-DMT or DMT my visual snow seems to clear up/lessen temporarily, and this is a consistent result I've had every time I've taken them.
I still wouldn't advise someone to trip to "cure" this visual artifact as everyone is different and it may not have the same result for you as it did for me, but I'd definitely recommend you go for a tryptamine rather than a phenethylamine for your trip on the 31st, since at the very least - phenethylamines (oh which MDMA is one!) are much more notorious for lasting visuals.