I'm sorry to hear that you're experiencing such distressing dreams and sleep issues. It sounds like your dreams are deeply connected to your past experiences and traumas, which can often manifest in unsettling ways during sleep.

Dreaming of being a child in a threatening situation, especially involving themes of sacrifice and violence, could symbolize feelings of vulnerability, fear, or a sense of being trapped in a situation from your past. The cult-like environment might represent a struggle against external pressures or influences that you feel are controlling or harmful.

The physical sensations you describe, like feeling the blade and the pain, may indicate that there are unresolved emotions or traumas that are surfacing in your dreams. It’s important to address these feelings in a safe and supportive environment, perhaps through therapy or counseling, as they can help you process what you're experiencing.

For now, consider establishing a calming bedtime routine to help ease your mind before sleep. Techniques such as mindfulness, meditation, or journaling about your feelings can sometimes help reduce the intensity of nightmares. If these dreams continue to affect your sleep significantly, it might be beneficial to speak with a professional who can guide you further in understanding and addressing these feelings.

Take care of yourself, and remember that reaching out for help is a strong and positive step.