I believe you, i really feel sorry also. I am a very experienced seller with 10 years!!!! on Etsy and i can tell you that for me in particular the 2018 was a true pain in my a**. The true worst ever forever. I was very anti-ebay but 2018 pushed me to open a store on ebay and also made me add efforts to my own web. Doesnt changed the fact that yes Etsy is not as good as 2 years ago and yes, i must do double work on Etsy and get in return much less than in previous years. BUT, i think that if you really do lot of works there, instead of full leaving Etsy just downsize and study all possible cases and escenario for your business. Try to understand what exactly is best. And yes, do not overspend.