bad relationship w mom PLS HELP

(I recently turned 21 for age reference) My mom and i got into a MASSIVE fight last year, i felt she was changing as a person and allowing my now stepdad to do whatever he wants. She never listened to me and would get upset if i even tried to talk about it. It was a BLOW UP fight so bad one night she attacked me and words were said that couldn’t be taken back and i left at 4am w nowhere to go... She wouldn’t let me come home so i had to live with my emotionally abusive father. My relationship with him has been horrible since age 6, he wasn’t in my life. I couldn’t take living w him so I left and went to my friends house... my family in Florida decided to take me and welcomed me with open arms. I spent 6 months going to therapy, recovering, learning how to hold myself accountable, practicing proper communication, how to take care of myself, and found outlets to express myself. It was rejuvenating and after the 6 months I decided to come back home to my mom.. we don’t really talk about the blow up bc things are fine. Recently, she did something that was VERY triggering and i tried to communicate with her that night she shut me down. I asked 3 times that night she told me to get out. I left the situation alone but she was acting really strange towards me. I asked my stepdad what her problem is with me and he acted oblivious. She reached out to me and said she wasn’t. I wrote her a text explaining how the situation was triggering because— and apologized to her if she felt i wronged her. It wasn’t my intention. She told me “it’s over i don’t want to talk about it❤️” The silent treatment, talking to other people and avoiding me, shutting me down when i tried opening a window for communication, and not listening to how it hurt really made me question our relationship and if it’s healthy? I don’t think so, to protect myself and avoiding falling into any traps with arguing or anything I’ve been keeping my head down. I just go to school, go to work, eat, and sleep and make sure no one is around so i don’t have to talk to them. I am very respectful to everyone I’m not being shady or passive aggressive. Just trying to avoid conflict. She likes to sweep things under the rug and try to talk about other things but I’m not interested in that type of relationship anymore... i shared with her why it was triggering which was HARD TO DO, she didn’t listen... i tried to communicate she shut it down 4 times. I don’t know what to do or if I’m wrong in my decision and ofc my stepdad is useless and doesn’t talk to me either.