Cousin COCSA

When I was 7(I am a girl) my older cousin who would’ve been 9(also a girl) came to live with me and my family and she had to share a room with me because my parents didn’t have enough space for her to have her own room, and we had to share one room. I think very early on she found out about p0rn and she saw sexual acts in the videos and one day she told me that we were gonna play a game and she told me that i was going to be a girl and she was going to be a boy. By the way this was late at night, my brother was asleep, her parents were asleep and my parents were asleep so i guess i was vulnerable in that way. I remember that we didn’t really have like a conversation about consent because i didn’t know what was going on truly but i remember what she did to me and told me to do to her. At first she told me to just like kiss her and she told me to use my tongue. And then she told me to lift up my shirt and groped my newly developed chests. And told me to do the same to her. Then she told me to finger her and fingered me. I didn’t know what fingering was so of course she had to explain it to me. And at first this was all it was, there was no oral involved. But by the time i had turn 8(i was born later in the year so it was only a couple months later) It had continued and gotten worse. She started to give me hickeys on my breast, and she ate my pussy, she would also try and show me p0rn, and when i said that it was weird she told me to just watch it. I remember one time i was trying on bras with my mom because i had developed more and needed new ones, she saw a hickey on my breast and got so scared for me, and emotional, she bugged me with what happened, I didn’t know what to say. I told my cousin and she told me that if i told her what happened she’d tell everyone about our secret. I thought I had done something wrong and honestly still do but anyways I got scared and told her mom and my mom that we were fighting, i hit her in her face, so she punched me in my chest, even though that was a lie, i did it to save her. I remember she was very manipulative and still is so it’s hard to say no and not follow her rules. (She also gave me rules to follow like done everything i say, don’t disobey me, etc.) This continued until she left and i remember feeling peace afterwards. I got really close with my cousin who is only a couple months younger than me and I told her about my experience. Turns out she was also touched(she never experienced oral but that’s still horrible) and she got kissed with tongue. I still don’t know if this is truly COCSA but i still have trauma i think and i feel like i sexualize myself and im just over sexual. Anyways, I am still in contact and sort of close with my abuser, and for some reason now she likes ruining my relationships, and my other two cousins who were also abused relationships. For example, she tried to tell her mom, my mom, and my aunt who favors her that my boyfriend was using me for sex even though me and my boyfriend have a loving relationship. I can’t cut her off yet because we’re both still minors but when i get older i honestly want to, but i come from a family with generational trauma with a lot of aunts and uncles who believe that no matter what we’re family and we should always love each other and talk to each other However my cousin(the one who i’m very close with) wants to tell her mom, step mom, and my mom. I’m scared and I don’t feel ready, just because i feel like it would cause a lot of family issues. And the family bond we share would be collateral damage.