JoeS21, I agree with brainhi, you are not going to change that about your mother at this point. I can relate to how frustrating it is for you though, my husband has compulsive ADHD and dyslexia and talks over me, interupts me, cuts me off constantly and trys to finish my sentences and it really "is" upsetting and aggrivating. I had to deal with this from a sibling and my father in my childhood too, and my brain just gets extremely frustrated at times and it really "is" exhausting and I find it tends to aggrivate the PTSD challenge that I have.

I think some people have habits of talking over others, however, the ones that I have noticed really do it the most are those I have dealt with that struggle with compulsive ADHD like my husband.

Try to limit your conversations with your mother if these conversations upset you so much.