Is my mum being my mum, or does she genuinely think this?

She tells me almost all the time how "bright" I am, and how I'm the smartest person in the family. She tells me that it's rather frustrating for her that I don't give 100% in
academia, but knows that I'm very intelligent nonetheless.

She tells this to all her work colleagues and close friends, so when they're aroiund they always say things like "Omg, you're right, he is talented".

This all makes me quite uncomfortable as I've never even imagined that I'm "bright", especially when she tells me that if I had put 100%, she's sure I would be in Oxbridge.

But she knows that I wouldn't because, like her, she decided that Oxbridge was not her scene and went somewhere else.