Hi Bananas
Life is a very scary business to be in especially at night
At your age there are so many things happening that you need 26 hours in a day to get them all done. So have you looked at some of he things you do during the day and then plan your day so the morning is the getting ready part noon is full go and then ease back till bed time and then instead of worrying about sleep all night and all the things that go on after dark just say to your body " time to relax and turn off for 8 hours " . It might sound silly but just have the attitude of you controlling your body not your body controlling you.
A positive attitude in life helps heaps even when your facing the demons of the long night.
There is a whole world out here waiting for you so try and be happy .