Dear Kiersten

Are you able to receive state benefits in your country to help pay your rent etc? If so this will free you from feeling beholden to keep contact with your mother once financial ties are severed.

I am guessing that your mother does not like that you are taking control on how & when you communicate with her.

The fact that you wish to be deal compassionately with your mother despite her toxic behavior towards you shows that you are a good and caring person despite of your parental relationship. I am guessing that your mother is under 70,  I have known a couple of people who have had early on set dementia and their disease progressed rapidly compared to those that have late onset, so the work that you are doing to make & keep peace in your heart is a good idea.