How to deal with a mom like this?

Has anyone ever had to deal with a parent like this? Anytim I try to talk to my mom about my childhood and moments when she wasn't the best mom and how it affected me all I get is her being defensive and saying "Well I guess I'm the worst mom!" I fucking hate it. She can't get out of her own fucking mind and just wants to be a victim. She will say things like "I guess me giving the ultimate sacrifice and carrying you for 9 months gets completely erased because of a bad moment I had." I literally didn't say that. She just cant listen to me.

Edit: I want her at acknowledge when she was shitty. I want her to acknowledge that she did bully me into an eating disorder. I wanted her to acknowledge that she at times was a bully towards me, was childish, and didn't always do what she was supposed to do. I want her to apologize and give me closure. Because if I can't get that from her ... Idk if I can have her in my life without closure.