How do I understand the theme of agency?

My understanding of agency is tied to my understanding of gender. I tend to ask questions about how gendered individuals are afforded agency, and if their agency is limited how they attempt to change their positions in society. This understanding is also structured on the idea of a hierarchy-looking at who holds power and how they interact with those who hold less power. I don't think of agency in terms of broad gestures of individuality, instead I see it as how individuals utilize existing social structures to carve out their own sense of individuality and control.