Welcome to Dementia Support Forum
@terri326.
Your mum has probably got to the stage where she needs people around her all the time to reassure and direct her. Most people with dementia at that stage talk about wanting to move in with family or long to go back to a past home from an earlier stage of life.
Have you looked at any care homes? They are not all alike so I'd go and have a look at a few and maybe book your mum in for a couple of weeks respite to see how she gets on. The only trouble with that is that if she hates it t might then be tricky to move her into care if and when she really needs it. This site
Care Home UK is a useful place to start when you are looking. Reviews and reports can only tell you so much, you do need to go and look at them.
This is a very friendly and supportive place and I'm sure others will be along shortly with their ideas and suggestions.