I have 20 minutes a day—how to structure my Kannada for a first conversation?

I’m a busy professional with a trip to Mysore coming up in two months. I’ve been using apps but I freeze up when I try to construct even a basic sentence about booking a cab or ordering coffee. I need a tight workflow to optimize my 20-minute daily window. Should I prioritize verb conjugation tables or focus on getting real-time feedback on my broken sentences using an AI tutor like Chickytutor.com?