Need help from someone tech savvy

I am trapped in an abusive living situation with my parents. Unfortunately we are dependent on them financially for the time being so I have to be....tolerant of them. At least not fully hostile.

My mom is the worst offender. Is just straight up verbally/emotionally abusive to me. Constantly sending me harassing, insulting, jabbing texts. And then lovey dovey ones to try to cover up for it. It is so so unhealthy for me to be exposed to. I don't want to block her though I have threatened....she will throw a total fit about it....it will be big drama....I tried hiding notifications. But that is so useless. Bc every time she texts the conversation thread is boosted to the very top of my messages and I see whatever nasty shit she sends anyways as soon as I try to check my texts.

What I need help with is figuring out a way to NOT see the messages she sends me at all. How to turn off message previews in the messaging app itself. Or how to hide the conversation. I have been googling and experimenting but cannot figure it out. I have a samsung galaxy phone. Does anyone know how to do something like this 😭