feeling stressed

I have lately been feeling quite stressed and exhausted. I suspect my mom is a Narcissist. I am not sure she is one as I am not a psychotherapist, but she has acted weird for years. I will explain to you all what she does. She frequently yells at me for every mistake that I make, even minor ones, she's negative all the time and never has any positive thoughts, she always complains she's not feeling well (which may be legitimate but she does it every day), she never really gets excited if something good happens to me, she controls me somewhat, she is overworrying about coronavirus to the point where I am mentally and physically exhausted from hearing about it, she is afraid of practically everything, and she has given me false apologies that are meaningless, I can see right through her. She talks very badly about other people who disagree with her and lately she's started complaining that people don't wear masks.

I do notice she has some empathetic traits and moments where she does act completely normal, particularly around others. I already acknowledge I cannot fix her and this is who she is, but I am looking for an exit out of this situation while also remaining in contact with my mom despite her flaws. I still love her in spite of all of that but I am at the brink of exhaustion and instanity.