Hi,
I'm 29 so really not a teenager at all but I'd just like to send you a huge virtual hug and second what Kayl1986 said. There's lots of help available for you out there and although we can talk stuff through on here it's no substitute for real world support. Is there somewhere you can go and talk to someone? The longer you go without telling your parents the harder it'll get I reckon so the best thing would probably be to go to your Mum if you feel you can.
All the best,
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