Logistic is brutal in what is starting to look like a post globalization world: shipping fees are through the roof, delays are long, regulation (especially in the EU) is ever more stringent. COVID-19 pretty much killed bemmu's Candy Japan (https://www.candyjapan.com), and EU regulation just killed Candysan (https://candysan.com): they threw in the towel one week ago.
And yet we keep going... gross margin is around $800~$1000 per month.