Insomnia & only 14; i've tried everything[read on to find out!] please, help me.

[sarah shattered :]]

please.? hey,
i have insomnia pretty bad, like i stay up to at least 3 am on average, sometimes later. sometimes i don't even sleep, i stay up all through the night then go to school and sit there like a zombie :\ its really starting to get in the way of my life!
i've had it for a while but at times it gets worse, and then a tiny bit better then worse.
i don't know what to do.
heres a list of things i HAVE tried.

-Meditating
-Lavender candles/oil difuser
-Milk before sleep
-Being active during the day
-Not sleeping during the day
-Melatonin supplement
-Reading before bed
-Laying there in the dark
that's all i can think of right now:\

i feel so hopeless.
i can't take sleeping pills because im "too young" according to my parents/psychiatrist, and they're addictive.
and i'd rather not be addicted to them.

any suggestions??