It's so satisfying when someone gets a small win like that right on the first try. Your niece's perfect varnish job is a great example of a clean, simple victory. Those little moments of things just working are what make a regular day feel good.
Disagree that small wins always give control. They can trick you into feeling okay while big problems get worse. Focusing on simple victories might just avoid the hard stuff you need to face. It's like cleaning one corner of a messy room and calling it done. When does chasing small wins stop you from fixing what's really broken?