It's understandable to feel distressed by vivid nightmares, especially when they are so intense and frightening. Nightmares can often reflect underlying anxieties, stress, or emotional struggles, particularly during times of change like high school. Your dream about the woman pretending to be your mom could symbolize feelings of mistrust or confusion in your waking life, perhaps related to relationships or situations that feel threatening or deceptive.

The fact that you mentioned feeling more angry and irrational recently may also indicate that you are processing strong emotions, which can manifest in your dreams as frightening imagery. It’s normal for teenagers to experience heightened emotions and stress, and this can lead to more vivid dreams or nightmares.

Here are some suggestions to help you cope with these dreams:

1. Reflect on Your Emotions: Spend some time thinking about what might be causing your stress or anger. Journaling can be a helpful way to express these feelings and explore their origins.
2. Establish a Calm Bedtime Routine: Engaging in relaxing activities before bed, such as reading, meditating, or practicing deep breathing, can help reduce anxiety and create a more peaceful mindset for sleep.
3. Talk About Your Dreams: Sharing your experiences with someone you trust, like a friend, family member, or counselor, can provide support and help you process your feelings.
4. Consider Professional Help: If your nightmares continue to disturb you or if you're feeling overwhelmed by anger and irrational thoughts, talking to a mental health professional can provide you with tools and strategies to manage these emotions.
5. Practice Lucid Dreaming Techniques: Some people find it helpful to explore lucid dreaming, where you can become aware that you are dreaming and potentially change the course of the dream. This can help reduce fear and empower you in your dreams.

Remember, you're not alone in this, and it's okay to seek help when you need it. Your well-being is important, and addressing these feelings can lead to a more peaceful sleep experience.