Teodozija Myroslava Mostepaniuk is a sister of the Order of St. Basil the Great (Province of St. Michael the Archangel, Croatia). She completed a master's degree in Ukrainian and English language at Kyiv National University in Ukraine and a master's degree in religious pedagogy and catechetics at Catholic Faculty of Theology at Zagreb University in Croatia.
After final vows in 2018, she worked in parish ministry in Eastern Catholic parishes in Prniavor (Bosnia) and Kyiv (Ukraine). Currently, she is doing her licentiate studies in church history and teaching religious education in secondary school in Osijek, Croatia.