((((((((((((((xxMSFxx)))))))))))))))))
Unfortunately not many parents do understand what we're feeling. And they're probably scared for you and want you to be safe so they think grounding you is a good idea. They're not exactly right... but they at least care, right?
http://www.healthyplace.com/abuse/bl...y/menu-id-877/
Or print this off and give it to them. It's worth a shot talking to them, because they DO know you do it... they probably just don't know what to do about it now.
http://www.healthyplace.com/parentin...it/menu-id-61/
Have you talked to a school counsellor about this??