My friend is having a few TIA's per day and had a stroke two years ago. Will she last the year?

My friend is 76 and we can’t even talk on the phone without her having a TIA or seizure. She just says the doctors can’t do anything about it which I find hard to believe. I think she said she has plaque in her carotid artery. My mother did, too, but refused surgery as it’s very risky but I wish she had had it done.
Do you think my friend will last the year? I’m going to call her today. She lives forty five miles away. Two other friends, one very close, have already died. I am convinced stroke can be caused by anxiety and depression. She has been depressed and rejected her entire life and worked two jobs to support her two children who now have rejected her.