yeah that is sad i have kinda same but different situation not step mom but step dad my mom has been with this guy since i was 10 yrs old i am now 17 1/2 any way ok he was nice at first but over years he has changed anger has taken over if something is not done right by that i mean if not done his way he snaps if you dont listen he hits thinking he is on top of the world like he is the king he is never happy i understand why i mean my mom has cheated on him many of times but yet he is still here only cuz he has kids with my mom it is COMPLICATED with things like this I UNDERSTAND COMPLETELY i wish you the best of luck maybe some day will change and be nicer to you