Good to see a young person interested in studying.
Your brain is like a PC, it is more powerful than anything you can buy on Overclockers and it has an operating system!
It is helpful if you know how to program it and how your memory works.
The poster who said 20 minutes study, 5 minutes break was spot on.
This helps you learn to program your head
http://www.amazon.co.uk/Buzans-Study-Skills-Techniques-Reading/dp/1406664898/ref=asap_bc?ie=UTF8
Get past papers and ask your teachers to set you some extra questions, get familiar with the curriculum for each of your subjects. For example pages 46 & 47 - but check it is the right exam board:
Photosynthesis and respiration pg 46 & 47
http://filestore.aqa.org.uk/subjects/AQA-BIOL-W-SP-14.PDF
So make sure you know about or at least have heard of everything on the curriculum - don't leave that to your teacher - they miss stuff out.
Biggest tip
No one on a plane is going to shout out is there an expert computer gamer or football fanatic onboard. They are hobbies, there is plenty of time for those.
Pack up your PC/console during exams, get it out if you really do not feel like doing any work and play as much as you want but for the most part hang up the mouse and study.
Please try this, it worked for me at university and I wish I had known it earlier when I was at Secondary school
Start your revision 10 weeks before the exams start. Seriously!
Buy a big ream of A3 paper off Amazon
Some coloured pencils and learn to mind map
Do past papers
Don't write out revision notes - utter waste of time - everyone does it
Set up a nice quiet location in your house - I have a standing desk in my garage! No internet, no distractions, nothing else to do
You can leave you stuff in there and pop in for an hour or two - walk away.
Do the hard thing, take past papers, qs, turn the books over, have a timed exam - I use my cooker timer! If your exam is an hour for 4 questions try 10 minutes for 4 questions but just reproduce your mind maps and after 40-minutes or when you can't recall anything more - see how you did. You will find you master some maps, but struggle on others, so practice those over and over until you have it done.
If there are frequent topics that come up, write them down and master them.
Practice turning over the books, revision mind maps and reproducing 10 or 20 things you know about that subject until you have memorized them.
After 8 weeks you have learned everything, you will have all your mind maps for each subject. Now you are going to have a week off!
Now 2 weeks before the exam have a week off! Sat, Sunday, Mon - Fri, Sat Sun = do everything do like doing - PC, footie, cinema, out with mates.
Notice how all your mates will just be starting their revision, you will have done yours - and you are having a holiday!
Now on the Sunday evening you will be refreshed and exam nerves will kick in, you have not done any revision for a week!
Now 1 week before
Start to revise by going over your revision notes. But you are fresh (fresh legs). You will have normal exam anxiety which will carry you through. It is going to feel great, you have done all your revision, you are just refreshing your knowledge and after a break you really can work hard up to and during the exam period.
Do this and I promise you they will be the easiest exams you ever did. Repeat this for your A-levels and Uni.
Work hard OP, several weeks out of society will not do you any harm and these GCSE tickets are a game, here is a good strategy to beat the game, they will open opportunities for you in the future. This determines your earning potential in the future and this bit of hard work means you will be watching plenty of footie and building gaming rigs in the future - it pays for your lifestyle and life and you have a brain, use it.
Only you can do this.
Good luck
