Write a scene (approx. 500 words) from the first-person perspective of a character who is trying to convince the reader (and perhaps themselves) that they are happy about a recent promotion, while the subtext and descriptive details clearly reveal they are actually terrified and regretful. Do not explicitly state their fear or regret; show it through their observations of the environment, their physical reactions to objects, and the disjointed nature of their internal monologue.