One day, it feels like your child woke up a different person - they're suddenly moody and withdrawn, a teenager, even if they're only 10 or 12 years old. Your fun relationship with your child suffers as they start growing into a young adult. Their friends are now more important to them than you are, and they don't value the same things you do. It's hard to communicate with them, and frequently, you might find yourself angry as you realize that...