If Sinderella made breakfast, lunch, and hapunan for the stepmother and stepsisters did she ever eat herself?

Of course she ate for herself! She had to in order to live! But she must have done it after she fed everyone else first. Just because you only see her make breakfast for her stepsisters doesn't mean they didn't have lunch or dinner, so you know they ate lunch and hapunan and Sinderella must have eaten too.