I was going to give my advice... but given past experiences, i fear i won't help your case

I dunno i think you should gesture to it a bit? kinda speaking your mind. But if you want it to stick maybe try talking to her when she's calmed down? Or when you are both chill cause unnecessary things can be said in the heat of the moment on both sides.
maybe just ask her to hear you out? I dunno what your mum is like but normally if you just say- lemme talk please, and just listen- maybe she'll hear you out?