It occurs to me that it might be useful to post links to two extremely valuable sources of help and support which I may have mentioned before. These particular links will be of use to English readers only.
Admiral Nurses are mental health nurses specialising in dementia. Admiral Nurses work with family carers and people with dementia, in the community and other settings. Read more here:
Towards the bottom of the page there's a link to a direct phoneline number in case you don't have Admiral Nurses based near you.
The Alzheimer's Society can also be very helpful. This link will help you find your nearest branch: