I just had my 25th sale in my Etsy store and I can't even tell you how excited I am!
Being able to CREATE art and artistic jewelry and have people WANT them and buy them so that I can turn the money around into different materials to create MORE is so freakin fantastic. I feel fulfilled and complete for the first time in my life and hell, it's only taken 30-some odd years to get here. I am finally doing something I love and thank you to my friends (and family) here who have helped me make that possible. You guys rock.
Edited to add this. I was asked on the etsy forums for tips and then again here by Rocky, so I am copying and pasting what I wrote there. I don't have many tips, to be honest. I still consider myself a very NEW seller, I just got lucky with a couple repeat, multiple buyers! But here is what I wrote on the etsy forums and I hope it can help someone!