A woman asked me which of two coffee makers was better for her, and I just pointed at the more expensive one because I didn't actually know. I've worked the floor three months and I still can't answer the questions people really ask. I feel like a fraud in my own uniform.
More people experience this than they realize.
You don't know the products well enough to genuinely help customers choose.
If this sounds familiar, the Library can help you find the bigger picture.