Humm was a late bloomer who did not make her national team debut until the age of 26. In contrast to most of her international teammates, she decided to remain an amateur footballer. Despite playing at the highest levels, including a World Cup, European Championships or the UEFA Women's Champions League, she never gave up her full-time job in an office of a logistic company.[3]
In October 2022 Humm scored the decisive, 2-1 extra-time winner over Wales in the 2023 World Cup playoffs that secured Switzerland a spot at the tournament only for the second time ever.