Your dream presents a rich tapestry of symbols and emotions that can offer insights into your current state of mind and life situation.

1. The City: The city represents a place of confinement or a situation in your life that you feel trapped or overwhelmed by. Since you associated it with Mexico City, it might reflect specific feelings or experiences related to that place or what it represents to you—perhaps a sense of chaos, culture, or even the weight of responsibility.
2. Giant Metal Doors: The massive doors symbolize significant barriers or challenges in your life. Their height and size suggest that these obstacles feel daunting and perhaps insurmountable. The fact that they are the only means of entering or leaving indicates a feeling of being stuck in a specific situation with no alternative routes available.
3. The Book and the Pen-like Object: The book may represent your personal experiences, thoughts, or even your identity. The pen-like object suggests creativity or the ability to express yourself. However, the anxiety you felt when the official examined it could indicate fears about being scrutinized or judged, possibly relating to your self-expression or personal boundaries.
4. The Bathroom: Bathrooms in dreams often symbolize the need for relief or the desire to cleanse oneself of unwanted feelings or situations. Your search for a bathroom might represent a need for emotional release or a place to process your thoughts before making a significant change. The stainless steel walls could signify the coldness or sterility of your current environment, while the small blue tiles may represent distractions or temptations that could lead you away from your goal.
5. Feeling of Nervousness and Anxiety: These emotions reflect your current state of mind regarding the challenges you are facing. It’s common to feel apprehensive when navigating significant life changes or decisions.

Ultimately, this dream suggests you are in a period of transition, feeling trapped in a situation but seeking a way out. It highlights your desire for freedom and relief, along with the anxieties that accompany such changes.

Advice: Consider what specific aspects of your life feel confining or challenging right now. Reflect on what steps you can take to address these feelings and create a pathway to freedom. Look for opportunities to express yourself and seek support from others as you navigate this journey. Be mindful of distractions that may divert you from your goals, and stay focused on what will bring you the relief and change you desire.