Has she done anything to overcome her difficulties? If so, what has she done?

Joanna's efforts to overcome difficulties:

Yes, Joanna has taken steps to overcome her difficulties:

• Language classes: She is taking Spanish classes at the weekend to improve her language skills.
• Proactive engagement: She is actively trying to make things easier for herself by asking questions about Mexican culture, which encourages her hosts to talk more and reduces the pressure on her to speak Spanish.

Answer: Yes, she is taking Spanish classes and proactively asking questions about Mexican culture.