Hey! Are you on a forced gap year by any chance? If so, join the club. I know the feeling watching all your friends go off to uni, it might be advisable to stay away from facebook for the next month or so to avoid seeing freshers pictures everywhere (trust me I know that feeling). Anyway, the best thing to do really is to make the most out of your gap year, that way it won't feel like you've wasted a year. You can do so many things with a year when you're not studying you could:
1) Get a job/a new job
2) Improve your grades (if needed)
3) Travel
4) Learn a new skill such as a language
5) Volunteer
6) Volunteer abroad
7) Improve your university application
8) Improve your CV for the future
9) Uptake a new qualification
10) Decide what you want to do in your future
There are such a range of things you can do, which will be so worth while and enjoyable! If you are on a forced gap year (like me) its understandable to feel sad, especially at this time when everyone is moving away to go to uni and are putting all those photos up of their uni life, but all that will die down, really the best thing to do, is to grab life by the throat and change your prospective on things. Yes you've got a gap year, this is an opportunity that you are not going to leave go easily. Make the most of it and have fun. Have you got any ideas at all of what you want to do?