The secret to clear skin, for boys and girls:

1. drink A Lot of water.. this will flush all the toxins away. Water is the key hydration and if your skin is not hydrated it will break out
2.  Get at least 8 hours of sleep... when you sleep your skin cells will renew and regenerated itself. Also, when you sleep stress levels go down lowering the chance of your skin breaking out. If you don't get enough sleep your skin will look dry and dull and will eventually break out. they don't call it beauty sleep for nothing!
3.  Try to sleep on your back... if you sleep on your side or stomach you can cause permature siding and the bactiria from your pillow can cause you to break out.
4.  Change pillowcases often... the bactirea can cause you to break out
5. Clean off your mobile phone screen often... the oil and bacteria from use (especially a touchscreen) can cause you to break out
6.  Eat a healthy diet... if you eat a lot of fating and greasy foods this will cause your skin to break out. eat foods that are high in antioxidants like lemons, tomatoes, strawberry, blueberries, etc...
7. HYGIENE!!!!! make sure to wash your face morning and night. try not to sleep with dirty hair and try not to touch your face alot. The oil and bactiria on your hands can cause you to break out. Always splash your face with cold water first to get the blood to flow and you get circulation in your skin. keep your room clean because with a clean environment you'll feel it and stress levels will go down.
8. Exercise... when you exercise it increases blood circulation which is really good for your skin, and it reduces stress levels and just makes you feel good. make sure to sower after! ;)
9. Avoid dairy...the hormones in dairy cause you to break out.
10. Moisturize... don't clean your skin too much. Use a good oil free moisturizer. try to stay away from cream and go for gel moisturizers.
11. Identify your skin type... use common sense on what products are safe for you to use and work best.
12. Don't completely rely on products...they can only help so much.
13. Find  good cleanser... I prefer Nutragena (they don't pay me to say that) it just cleans my face thoroughly and gently.