Being a parent myself I would advise you to lie about your age and go to sea, not that they want rid of you or anything. Maybe think about a wee bro. or sister while your away.
If you term yourself as a 'miserable cow'...*WOW*...sounds like your parents think so too

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You could always go to college and do as college people do....get drunk, party, orgies, drugs and eh, Study.
Do what you wanna do...........you know being Female that you will do that anyway!!