Blundstone women’s Australian size 4

I love these boots but they are a tad too big for me. They are a size 4, seem to fit like a 38 in Dansko sizing or an 8 in US sizing. These boots are a 4 in Australian sizing. Worn maybe 5 times, they have a few scuffs and a spot of white paint. I wear a 36-37 in euro sizing or 6.5-7 in US sizing and these size 4 are a size too big for me.