Sam M's "Changing" is about the pain of being loved on someone else's terms. The speaker feels a parent or similar figure (the poem never says exactly who) is trying to remake them through gifts, pressure, and disapproval. The new things being bought aren't really presents; they're tools for turning the speaker into someone else.
The feeling here is a tangled mix of hurt, frustration, and confusion. The speaker admits they can't ease off on college, because they do want to succeed, but the "you" defines success in a way that doesn't fit them. The short lines "The geek / The nerd" sound like labels thrown at them, or ones they've absorbed. By the end, the tone turns bleak: "I don't even know who I am anymore." The mood is heavy and raw, like someone finally saying out loud what they've swallowed for a long time.