Your dream presents a complex narrative filled with themes of identity, reality, and emotional turmoil. Here's an interpretation of some key elements:

1. Alternate Realities: The concept of being in another world where no one recognizes you suggests feelings of isolation or disconnection in your waking life. You may feel like you are playing a role or navigating situations where you don’t fully belong.
2. Knowledge vs. Ignorance: Your awareness of future events while others are oblivious could symbolize a sense of frustration or helplessness in your current situation. This may point to feeling like you have insight into something important that others do not, leading to a sense of alienation.
3. Confiding and Intimacy: The act of confiding in someone and the subsequent negative reaction might indicate fears of vulnerability or the consequences of opening up to others. This could reflect past experiences where sharing your feelings led to misunderstandings or hurt.
4. Violence and Captivity: The violent imagery, including being shot and the knife incident, may represent internal struggles or fears that you feel are overwhelming. It can also symbolize a feeling of being trapped in a situation that you cannot control, possibly linked to relationships or personal challenges.
5. Transformation: The change in the person you confided in and their affection for someone else might signify feelings of betrayal or loss. It could also represent your fear of change in relationships and the impact of those changes on your emotional well-being.
6. Resolution and Acceptance: The ending of your dream, where you decide to embrace this new reality and plan for a future, suggests a yearning for acceptance and the ability to adapt despite the challenges you face. It might symbolize a desire to find peace and happiness even in uncertain circumstances.

Overall, this dream highlights deep emotions about identity, connection, and the struggle to navigate complex relationships. It might be beneficial to reflect on any current situations in your life that resonate with these themes and consider how you can work towards clarity and fulfillment in your waking reality.