control your mood...

Here are some things you can do that might make those bad moods a bit easier to handle:-)
Recognize you're not alone. Although not every teen experiences mood changes to the same degree, they are common.
Catch your breath. Or count to 10. Or do something that lets you settle down for a few moments, especially if you're feeling angry or irritable. Try to look at the situation from the point of view of a wise observer.
Talk to people you trust. Friends can help each other by realizing that they're not alone in their feelings. Talking to parents is important, too. Parents can share their own experiences dealing with bad moods. Plus, they'll appreciate it if you try to explain how you feel instead of just slamming a door. Teachers and counselors are often good resources, and a doctor can help sort through questions about development. Keeping feelings inside can make them seem much worse.
Exercise. Regular exercise produces more beta-endorphin, a hormone that controls stress and improves mood. Go for a run, play some tennis, ride your bike, or punch a punching bag.
Get enough sleep. Though it can be hard to find enough time, getting adequate rest is very important. Being tired can lead to more sadness and irritability.