Ways to get rid of anxiety:
1. Take a time out, if something is bothering you, stop doing it for a bit. Then come back with a clear head!
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2. Don't skip any meals, stay healthy, get enough sleep, exercise, etc. If your body isn't functioning well, your brain won't either.
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3. Stop drinking alcohol or caffeine (if you do).
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4. Get rid of the thing that is causing you anxiety? (If it is something like an abusive partner, or other things.)
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There are a thousand more strategies you can use to get rid of your anxiety, it just takes 1 quick G0OGLE search : ).
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Telling your parents about the anxiety may be hard, but it would be the best thing to do. Either that, or seek help online.
To break it out to your parents about your problems, take it slowly.
That's really all the advice I have for you.
Good luck and I hope you get better :)