Mom that trauma dumps

How do you deal with a mom that trauma dumps every time you talk to her? Every time I talk to my mom she’s always complaining & dumping all her problems on me. She never ask me how I’m doing or feeling everything is ALWAYS about her. I love my mom dearly but it’s so exhausting, I can be having a good day and get a call from her and it just puts me in a bad mood. She’s never been there for me emotionally my entire life, I’ve dealt with everything alone. It’s like she’s so negative every call is her complaining about something or someone. I’m so exhausted 😢