I can't sleep?!

I can't sleep?

I haven't been able to sleep for more than a few hours a night for a while now and it's really getting to me
I'm not worried about anything and have nothing on my mind now my exams ahve finished and I am pretty much the most relaxed laid back person you could meet so does anyone have any ideas why I can't sleep or any ideas about how I can like get to sleep

2 weeks ago
I haven't been able to sleep for more than a few hours a night for a while now and it's really getting to me I have always suffered from Insomnia since I was like 5 after my nana died and I have always managed to cope with it or as well as I could anyway but recently it's got a lot worse
I'm not worried about anything and have nothing on my mind now my exams ahve finished and I am pretty much the most relaxed laid back person you could meet so does anyone have any ideas why I can't sleep or any ideas about how I can like get to sleep

Do you drink a lot of caffeine after...let's say 6 or 7? If you do, it could just be the caffeine that's keeping you up.