Living with parents

Living with my mom after graduating college is driving me insane, literally I cannot talk to her about anything meaningful without her getting upset or offended or just shutting me out. She is a republican which I am vehemently against and I have often spoke up about it in the past because it's something I feel strongly about. I also have some lasting anger issues towards her because she was a borderline alcoholic while I was in middle school and high school and she was just mean when she drank. But now she's quit, which I am really happy about, but I still have this lasting anger and resentment towards her.

I since have been keeping my mouth shut about a lot of things that irritate me and instead sequester myself to my room if I feel like I might get angry or snappy with her. I want to try to make things better but every time I have tried in the past things have blown up in my face, it's like she only wants this specific version of me and not the real version. And I don't want to have any serious discussions with her about anything because I am afraid to trigger her desire to drink again.

Idk what to do, maybe I just shouldn't try and once I get out just never look back. 

p.s. I will be moving out sometime in December or January