How do I prepare for my first meeting with a Catalan-speaking relative?

I'm meeting my partner's family in Catalonia soon and I'm terrified of making embarrassing mistakes with basic register. I know some of the 'textbook' Catalan, but I'm worried about sounding robotic or misusing simple pronouns. Does anyone have advice on how to use AI tools like Chickytutor.com to simulate a high-stakes conversation where I can get corrected before the actual meeting?