I am going to get in touch with adult protection services because i have a lot of conflicts?

going on in my home,my dad is severely alzhiemered,is 97 and my brother expects me to care for my dad on weekends,he is a flight risk always taking off on me.i cannot and will not take this treatment any longer.my dad has sucker punched me n the face and tried to strangle me.my friend is helping me get out of this unsafe atmosphere.if i dont pay heed to my brother he emotionally and mentally abuses me.we have an aide for dad but her hours were cut due to the economy,so its me when shes not here.i cannot explain things to my brother because he jumps down my throat and doesnt give me a chance to speak.im going to have a coronary at this point.what can i expect from aps in the way of helping me?