A CV is factual statement of who you are and where you've been!
Keep it short.
Be factual.
State you name first.
Be chronologically correct.
lastest school achievments. Results then all extra caricular stuff. Sporting medals etc.
Work experience.
Hobbies, interests.
All other personal details Last. ie contact, age etc
See how that was fast easy to read and concise. Thats how it should read... dont waffle on about your favourite song or your best holiday memory. No reasonable employment officer or Foreman will expect a 2-4 page CV from a teenager. Your CV shows your experience... you have very little at this stage of your life. Don't be ashamed of it, its just FACT.
FACTS are what your presenting in a CV!
A lot of employers are looking for someone with little or no experience so they can train them their way. Ask any tradesman... Of which my whole family are (except me

)Its a lot easier to train good habits into someone than train bad ones out.
The most important thing is the interview... be clear (DONT MUMBLE) and show enthusiasm to learn and work. I cannot stress that enough!!
That will give you the edge over other applicants