Big dark circles under my eyes :(?

I'm 15, and recently i can't sleep! I stay awake for ages and then i tend to drift off but i suddenly start thinking of something so i wake back up again! Also, i can't lay-in, i'm always known to be up at like 8:30at the latest. I don't know why though! It's really horrible!
Since this, i've started to get dark circles under my eyes and they are sometimes puffy and sort of swollen; like i've been hit or something… it isn't nice!
I cover it up with make-up usually, but is there any other ways of getting rid of them all together? So i don't have to worry my make-up isn't covering them?
By the way, i don't want to have to buy products that say they help, i would rather use natural things, like tea-bags for example, but do they actually work?
Also, is there any natural methods, to help me get a proper good nights sleep? As i hate feeling tired throughout the day. (i don't want to take pills or sleeping drugs though)
Thank you so much!
xxx

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