The secret is that OR to just keep going and don't give up, maybe.

If you're not quite remembering it, I wonder if the vowel sounds she was confusing were more like 'flit' vs 'fleet' which is super common for Spanish (and Italian, likely among others) to not hear the difference between.

When I was a student, my Spanish housemate thought I was saying 'shit' when I was saying 'sheet' when talking about toilet paper once and it caused a hilarious miscommunication/confusion.