Dreams involving historical or iconic figures like St. Joan of Arc often signify a connection to themes of courage, transformation, and personal identity. Here’s a breakdown of your dream:

1. Admiration and Envy: Your feelings of envy towards the embodiment of St. Joan of Arc suggest a longing for qualities you perceive in her—strength, passion, and purpose. This might reflect your desire to cultivate similar traits within yourself.
2. Transformation: The imagery of her past self with long hair and braids compared to her fiercer present self could symbolize your own journey of self-discovery and the changes you may wish to undergo. It indicates a recognition that personal growth often requires time and evolution.
3. Identity Struggles: Your expression of not feeling like a "true person" or lacking inner strength points to feelings of inadequacy or a search for your own identity. This part of the dream urges you to explore what makes you feel authentic and empowered.
4. Connection and Support: The interaction with this figure, who seems to be a guide or mentor, suggests that you are not alone in your journey. It encourages you to seek support in discovering your own strengths and passions.

Advice: Reflect on what qualities you admire in others and how you can begin to integrate those into your own life. Consider exploring activities that foster your self-esteem and sense of identity, such as creative pursuits, physical challenges, or spiritual practices. It may also be helpful to seek mentors or communities that inspire you, much like the figure in your dream. This could be a stepping stone toward embracing your own inner warrior.