Many of the stereotypes attached to adolescents, such as delinquency and violence, are false, not all behave like this
If you focus on the bad stuff, you could be missing out. Focus on the good stuff, be positive.
Your teen has a growing need for privacy. He may find his thoughts and feelings confusing, so it's hardly surprising he wants to keep things to himself. He's sorting things out in his own mind, not rejecting you.
To a teenager, it seems that adults always find the right words. He may feel unable to do this, so when he appears sullen, it may be that he lacks confidence to express things in the right way.
Don't be upset if your child sometimes acts as though your'e the most embarrassing person on the planet - this is very common and doesn't mean he doesn't love you.
Communication is the key to good family relationships. Without being able to talk easily, your teenager can't let you know what he needs, you can't offer support and care, and neither of you can negotiate boundaries and acceptable behaviour.