I told my housemate to lower her volume but she ignored me

So I share a unit with 5 roommates. They are quite collective and they chat in the living room a lot. But one of them, let’s call her Fish, refused to lower her volume when I asked her to do so. The thing is I did asked her with a POLITE, DECENT manner.

“Fish, could you lower your volume because I’m having online classes now?”

She literally ignored me because she maintained her wall-piercing volume throughout my entire class.

She is loud to the extent that, I am on the second floor, in my room, door shut, noise cancellation headphones on, and yet I STILL HEAR HER.

It’s super scary and I’ve written a message to her telling her how she has affected my class and sleep because sometimes I wake up to her voice in the morning and it’s difficult for me to get back to sleep. And yes I do put in earplugs but on some unlucky days they fall out in the morning.

The thing is I don’t know if there is a way to let her shut the fk up. She is clearly very stubborn about her loudness and she kind of got even further after I wrote her the message (she left me on read), she would still be bursting out crazy laughs after 12:30 AM.

Another roommate told me that she didn’t like me personally, which means I didn’t really do anything wrong, she just purely dislikes me, she also told the roommate that she would still be loud. I don’t mind this tbh I just want her to be more compassionate.

In the message I have written that “like me or not, respecting each other is necessary.” and yeah… according to what’s happening now, Fish is basically a jerk.

I literally just heard her saying a line “unless someone wants me to reply her…” right now as I’m writing this lol

I need advices on how to communicate with this kind of inconsiderate people. I most likely just hope she can shut up.

P.S. I still greet her when I see her in the living room and thats it.