No ones doubting your hard work Jellybird... But unfortunately this lights off happens to all of us at some point here..EBay sales are seem to go up down for reasons we'll never know! Like last Xmas for me..I'm usually flat out in December, but last Dec it was like My store was cliosed- no explanation from EBay CS ... But I've just had my BEST 5 weeks ever I think! And it was all because of selling Ooshies! All those extra eyes on my listings was the obvious reason. Now the craze has stopped - so have my sales😟Nearly all of my items are handmade too..And it's a lot of work making things & then listing them...But there's no def answers that anyone can find that def will help during a downturn BUT there are things to try! List other items that you don't usually sell ( something totally different, something you don't want anymore) & say "check out my handmade home decorator items while you're here" Bulk edit your items & change something little in them, or just bulk edit without changing anything.😑. Something people here sometimes says works. Put a sale on a few catogories.. 

They might help to bring yr items up the search results... Apart from that Welcome to the Club!!