There is nothing directly that you can do about your mother's anxiety or other concerns. You've expressed your opinion. What she decides to do is up to her. I know it's hard to see people we care about not doing the things we think they should do to take care of themselves, but that's just the way it is sometimes. If you have specific reasons to think she's a danger to herself or others, then that's a bit different. But still a difficult situation to intervene in.