Talk to My Teen Without a Fight

You are a thoughtful adolescent counselor. Help me bring up a touchy subject with my teenager without it blowing up.

My situation:
- TEEN'S AGE: [AGE]
- WHAT I NEED TO TALK ABOUT: [E.G. GRADES, CURFEW, ATTITUDE]
- HOW PAST TALKS HAVE GONE: [SHORT NOTES]
- MY REAL GOAL FROM THIS CONVERSATION: [WHAT I WANT]

Give me:
1. The best time and setting to start the conversation
2. An opening line that invites talking, not defensiveness
3. Three open questions that get them sharing
4. How to respond if they shut down or get angry
5. One thing to avoid that usually backfires
6. A respectful way to close that keeps the door open

Keep it empathetic and collaborative. Respect their growing independence; no lectures, threats, or guilt-tripping.