You're 18, you have no right to use the word plethora. What will you use when you're 19?
Your CV is too long. Meant to fit on 2 pages.
Remove all color. Black and white only! If you must have color then make a snazzy website.
You are talking about your technical skills, this is meant to be on a cover letter, take Jquery for example, you mention
"This is a very useful prototype framework, eases and simplifies my everyday job a lot more than if I was using javascript alone."
Chances are that your future employer knows all about this! Why even mention this line?
Often you need to tailor your previous experiences to the job your applying to. I take it you want to work in security rather than development? Do I have the right impression?
Btw, where are your hobbies and other interests outside of coding/being on the web? Often people are hired who are a good fit for the company, simply being a shit hot developer is sometimes not enough.
Best of luck with the job search though, this should get you a lot of exposure, tips and tricks.