My sales aren’t too bad at the moment. I still don’t get massive amounts, but they’re slowly increasing, and at the moment I’m selling more on Folksy than elsewhere.
I do make sure all my links point here though to help that (as I’d prefer to get my sales here). If you’re not promoting your Folksy shop so people know it exists, I do agree with the others that it’ll be harder to get regular sales. Not that is has to be social media if you really don’t like it, it could be handing out business cards with your Folksy link to everyone you meet, paid advertising, sites like Pinterest (I don’t really consider that social media as there’s not much contact or conversation with other users, so it avoids things like the drama).
@RedDragonDesigns For the app question, there’s something for sellers coming soon. And as you mentioned saving the monthly fee, don’t forget you don’t need a Plus account to sell. It can be the most cost effective way if you have lots of items, but for some sellers sticking to a standard account works out best. It’s nice to see you’ve decided to give Folksy another go though, and your items look good! 
The one thing I would suggest (especially if you’re not planning on doing social media promotion) is make sure you use up all of your 15 tags, to give the people browsing Folksy the best chance of finding your items.
This might help - How to use tags on Folksy
As well as checking if any of this month’s theme of the day tags suit your items - Homepage themes for March 2021 - find the list here (there’s at least one tag everyone can use this month).