Oh! I forgot to mention @xchrisd 's 3D Printing Guide.
It can get very technical, so feel free to skip sections and come back as you get more comfortable. It says “Snapmaker 2.0”, but there are files and directions for the Original. I saved the temperature towers, and print one whenever I get a new-to-me type of filament. Those require manual editing of your GCode file after Luban slices it (or a better slicer), so it’s worth saving a copy.