Many words (Sanskrit-derived and Dravidian) are nearly identical. For example, Amma , Nanna/Appa , and Annam/Sadam share a cultural DNA.
Suggest to practice with native speakers once you've finished the 30 days.
Look for apps that allow you to download lessons. This ensures you can practice during your daily commute or in areas with poor internet connectivity. Maximizing Your 30-Day Goal