Yrri Quita Say?

Culture is absolutely important part in life. For me I'm very fortunate to be part of 2 very stong cultures. But what makes me very upset with myself is that I don't know much of my own language.
Growing put I was spoke Shona (Zimbabwean native tongue) and English. I was able to talk to all my family in both Zimbabwe and Zambia. My father being of pure south Indian background knew the language but he couldn't speak it flutently. So in the house we mainly talked English to each other.
Both my grandparents on both sides of the family are still alive. Well yesterday I talked to my Ambuya (grandmother) in Africa. She doesn't know much english but she said, "Sonia, you ah speaking Shona?" And all I could reply was "Yrri Quita Say?" Means How are you. And she went on saying " I'm doing fine, when are you coming my dear?" Then from there I lost what she said. I really can't believe I can't speak it much. When I came to the states I was told that I was mixing up my english with Shona and Tamil (my father's language. So it was very hard for me to communicate. So I had a mentor who took me out taught me alot of stuff alot of American ways. LOL. She even introduced me to country music. lol. Which I liked. So after a while my mother began to notice that I wasn't speaking Shona. So she thought I forgot it. And from then on my mom and I spoke english to each other. Except the occasional screaming/cursing she would do. lol.
I mean I really want to. I feel left out in convos with either side of the family. Its as thou I've lost touch with my culture. I can "figure" out what ppl are saying to me when they are talking Shona if I recognize some familiar word but not to a full extent.
I do try to ask my aunt who speak fluently 5 languages how to say stuff. I WILL speak Shona...oh and my dream language...to speak Chinese.