As you finish school in late June, you have to remember that you do not have to return back to the UK until sometime in September if you plan on going to a UK University. This gives you a total of 15 Months.
It is unlikely that you will ever have an opportunity again to have this amount of free time available in your working career and it is important that you make the best of the time you have.
For some of you, this may simply be an opportunity to travel, for others it may be to gain new experiences that otherwise would not be available to you, for others it may be an opportunity to help others in less fortunate circumstances than you have or to take part in a Conservation Project.
I would suggest that you consider the following and then try to make out a 'Time Line' filling in all of the relevant dates and places: