Complex sentence: After the mother went through step-by-step telling her daughter how to be perfect by her definition, she asks what to do if she's not good enough, as if saying that everything her mother has learned is bogus.
Split into simpler sentences: After the mother went through step-by-step telling her daughter how to be perfect by her definition, she asks what if she's not good enough. That's like the daughter saying that everything her mother has learned is bogus.