Chesang was born on 1 December 1996 in Serere Village, Benet sub-county, Kween District, Uganda to Juliet Cheptoris and Patrick Kusuro. She is the second born in a family of nine siblings.[5] She attended Benet Primary School before she transferred to Chemwania High School in Kween for her O-Level studies.[5] Later, she graduated from Kyambogo University, with a degree in sports science.[6]
Police career
During her primary school days, Chesang won all athletic races that she competed in. She was awarded a full academic scholarship during her four-year O-Level studies at Chemwania High School. While in Senior 3, manager of Kapchorwa Athletics Association requested Stella's parents that she goes and lives in his camp, so that she could train with other talented athletes on a regular scheduled basis. It was here that the Uganda Police Force Athletic Club found and recruited her as a police officer and member of the Uganda Police Athletic Club.[5]