Parents

My relationship with my mum is not the best. She’s always angry and she never listens to what I say. She cuts me off and never accepts her mistakes. Whenever I do bring it up she says I’m talking back and being disrespectful. We’ve gotten into big arguments and it happens regularly. I feel alone.
Ever since her becoming a single parent I feel that I’m the target for her anger. I feel she has a big ego and I’m always the one apologising so that she doesn’t get further upset, even though I’m not to blame. How do I deal with this?