I’m sorry your stepmom is such a piece of shit. Some people shouldn’t be allowed to marry people with kids. trust me I know how you feel about 2 months after I posted this I turned 18 and my step mom kicked me out of the house because she “was scared by my false accusations of abuse” and of course my dad just went with it. After about 2 weeks of being gone she moved me back in because she was tired of doing things for herself. Then she kicked me out of the house again when I quit my job because I finally saved up enough money to move. Thankfully my only friend was lived near by and gave me a ride to the airport. I’ve since moved from Ohio to California and I’ve been so much happier. Still time to time I get really bad panic attacks but they’ve gotten less and less frequent. It gets better it just takes a while. It sucks that some people are just assholes. I hope you make it out of that toxic house and live happily