My first Night Cafe attempt. It wasn't what I wanted so I didn't attempt art for two months. I did, however, faithfully log in each day and collect my five points.
My second Night Cafe attempt. It wasn't what I wanted but I decided to roll with it and do the Publish thing. It was supposed to be a black cat inside the painting.
You can have Night Cafe output four images at a time (it burns up more credits, though). I got frustrated because the tool didn't understand Neuschwanstein Castle (nor give me a dragon), which is so unbelievable, but there you go.
This was supposed to be a leopard being adaptable. Shortly after this one I somehow figured out how to do better prompts that I felt okay publishing.
Eight months after I first got my account I was able to create an image I enjoyed. The moral of the story is that you have to be willing to burn through credits just trying things. If you build up a nice cushion of credits it doesn't hurt as bad. The engines have obviously improved over time as well. My favorite is SDXL 1.0, which costs one credit per use.