You are facing a tough decision. All I want to add is that I have a son who is 17 and I would want SOOOOO BAAADDD for my son to talk to me if he were in a situation like this, no matter how bad it is. No one loves you more than your parents, even if they may have a funny way of showing it sometimes.
You know your parents best, but please at least consider giving them a chance to help you.
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Adopt the pace of nature: her secret is patience. ~ Ralph Waldo Emerson