Your dream appears to be rich in symbolism and reflects various aspects of your subconscious thoughts and feelings. Let’s break it down:

1. The Kitchen and Stand Mixer: Kitchens often symbolize nourishment and comfort, while assembling a stand mixer could represent collaboration and creativity. Watching Leah and Aryan work together might indicate your desire to engage in collaborative endeavors, or it could symbolize a need for assistance in your own life.
2. Presence of Celebrities: Dreaming of public figures like Leah Jeffries, Aryan Simhadri, Sion, and Bella might suggest that you admire certain traits in them or that they represent qualities you wish to embody, such as creativity, confidence, or playfulness.
3. Old and New Houses: The transition from the old house to the renovated one symbolizes change and personal growth. The old house could represent past experiences or memories that you wish to move away from, while the new house signifies a fresh start and your current state of being.
4. Scolding and Privacy: Your reaction to Sion and Bella entering your parents' room reflects a strong sense of boundaries and respect for personal space. This could mirror your feelings about privacy in your waking life, or perhaps it highlights your protective instincts regarding your family or close relationships.
5. Affirmation and Consciousness: Your efforts to revise the situation and affirm your desires suggest a strong awareness of your thoughts and emotional responses. This indicates a desire for growth and a commitment to maintaining positive relationships, as well as a wish to manifest your ideal life situation.

Overall, your dream seems to highlight themes of collaboration, respect for boundaries, personal growth, and the desire to affirm your ideal circumstances. It may be beneficial to consider how these themes resonate in your waking life and if there are any changes or affirmations you wish to embrace moving forward.