Ostina studies at Mikalanga Secondary School. She completed primary school where she studies from class 1-7 at Ugano Primary. She is the daughter of Yohanes and Sebia, both farmers. They have a small coffee farm as well in addition to growing food for the use of their family. She writes in her application that her family has a difficult economic status, particularly when crop yields are poor. Her goal is to become a doctor so that she can help her parents and her 2 younger sisters. Her self-identified strengths include believing in herself and attention to detail.