Sales are low for everyone,  you are not alone.  Just scroll down this forum and you'll see at least 2 or 3 threads asking the same question as you. 

People are tightening their belts and not buying non essentials , there's not much money around for most people.

That on top of competition for the items you are selling is great. 

Have you looked at the prices your competitors are selling the same items for?  Buyers will usually choose the Best Match option >> Lowest price when seeing many of the same item, and buy the cheapest. 

Even selling your items for a penny less than the cheapest on offer may see a few more sales for you,  worth a try ! 🤔

@brit-fab-mart