I Plan On Reporting My Dad To Cps Again For Animal Abuse, How Should I Go About It So That I’m Heard This Time?

I’m not sure this is has the right flair so let me know if I need to change it. But my dad is an animal abuser, and I want to do everything in my power to have him be held accountable. I’m 17 if that helps/changes things.

Last year, I broke down in therapy about my dad abusing the dog at his house. Since my therapist is a mandated reporter she reported it to cps and nothing came of it. I told my mom about the report and she said “well, at least he’s not beating you” and left it at that. So she can’t really help me with this. I stopped going to my dad’s house shortly after that. I went over there very very rarely to see my 2 year old sister and her mom (my step mom). Each time I was over there he didn’t do it so I thought he stopped, especially since his girlfriend talked to him about it.

The last time I was over there (for my sisters 2nd birthday party) he slammed the dog into the ground. Me, my sister and his girlfriend watched and we all froze. My 2 year old sister flinched, which shows this is regular thing she witnessed. My biggest fear is my baby sister going through the same stuff I’ve gone through. My dad neglected me when I was younger and still going over there, he’s a serial cheater and brought lots of random women home, an alcoholic, and he pulled a gun out on his girlfriend. I need to do something or else she’s going to go through everything I’ve gone through. I have lots of problems from all of this happening (I am diagnosed with bipolar 2, I have dissociative amnesia and my last therapist was in the process of screening me for ptsd before she left for a different company) and I don’t want her to deal with all of that. Any advice for anything that will help me with this? Should I record it happening to show it to police? Should I try telling someone else instead of CPS?