Problem with stepmom?

my stepmom has always been verbally abusive towards me and has both my parents on her side.and she does these things when my dad is out,and he has been married to her for almost ten years now.when i was younger up to the age of 9 i had some anger issues but now have got those worked out.she is always threatening to kick me out of the house (i'm 17 now by the way and have to deal with her 24/7 due to being homeschooled)and i can't afford to move out now,even with me working at my job.my dad is always telling me as long as i am in school i can live there.it is almost impossible to get her recorded because:1 i only have learner's;2 i don't have a good recorder or camera.so basically i am stuck.she is an antisocial person and has been trying to force it on me and my two brothers (she actually uses my youngest to spy on everyone).even HER son hates her,though she doesn't treat him like me.i don't have any friends because i live in a rural area, and my stepmom is always reminding me of that.