### Symbolic Analysis:
The imagery of your dead grandmother being possessed and chasing you is laden with potent symbolism. Grandmothers often represent wisdom, family continuity, and unconditional love. The fact that she is deceased and possessing you introduces a layer of disturbance to this usually nurturing figure. Possession in dreams can symbolize loss of control, fears, and the invasion of something foreign into your personal sphere. Being chased signifies a flight response, usually tied to avoiding or escaping something frightening or unsettling in your waking life.

### Emotional Context:
Dreams involving deceased loved ones can evoke deeply rooted emotions and may reflect unresolved feelings or unfinished business. Your recurring feelings of fear during such dreams and upon waking suggest that there is a significant emotional residue attached to your grandmother’s memory or to family dynamics in general. Given your current mood of anxiety, you might be grappling with overpowering emotions or distressing situations that you feel ill-equipped to handle.

### Psychological Insight:
This dream likely reflects a struggle within your subconscious mind between holding on to past influences and the demand for forward movement in your life. The possession aspect pinpoints a feeling of usurpation or encroachment on your mental space, possibly induced by clinging to past experiences or by familial expectations. The chase element might indicate your reluctance or inability to confront these deep-seated issues directly, leading to an ongoing sense of unease and distress.

### Practical Advice:
1. **Confront Your Fears:** Identify specific anxieties or unresolved family issues that might be subconsciously troubling you. Journaling these thoughts can help bring clarity and insight, reducing their power over your subconscious mind.

2. **Seek Resolution:** If there are unresolved issues associated with your grandmother or family in general, consider ways to find closure. This might involve speaking with family members, creating a personal ritual of remembrance, or seeking professional help from a therapist.

3. **Mindfulness Practices:** Incorporating relaxation techniques such as mindfulness meditation or deep-breathing exercises can significantly reduce your anxiety levels. These practices can help ground you and provide a space to process emotions healthily.

4. **Strengthen Communication:** Ensure that you are openly communicating with your spouse or friends about your fears and anxieties. Sharing your burdens can often lighten the emotional load and provide different perspectives that might help you tackle the issues.

5. **Routine Check-Up:** Regularly examine your sleeping patterns and overall wellness. Ensuring good sleep hygiene and mitigating stress through exercise or hobbies can improve your dream recall and emotional balance.

Remember, dreams are your mind’s way of processing reality and subconscious thoughts. By addressing the haunting elements in your dreams and your waking life, you can transition from a state of fear to one of empowerment and peace.