Hello
@lynt68 and firstly welcome to this friendly and supportive forum. There is a wealth of shared experience of dementia here, so I am glad you have found us.
I am sorry to read about your Mum's very recent diagnosis. It's tough for sure, to get the diagnosis, even if you were half expecting it. I am attaching a link which you may find useful for information:
If you have recently been diagnosed with Alzheimer's disease, this booklet is for you. It will help you, and your family and friends, to understand more about the condition and how it can affect you.
www.alzheimers.org.uk
In practical terms, it would be wise to get Lasting Power of Attorney organised for both the Property and finance one, and the health and welfare one, as this will make things easier for you further down the track.
How to make a lasting power of attorney (LPA): starting an application online, choosing an attorney, certifying a copy, changing an LPA.
www.gov.uk
This is a very recent diagnosis and your thoughts and emotions will be all over the place right now. Take each day as it comes, but as Alzheimer's is a progressive disease, as you will be aware, now is the best your Mum will be. Does she understand her diagnosis? Has any medication been suggested? (Again you will know there is no cure, but in the early stages some medications can be proposed as they may, just may, slow the progression).
Thinking of you, and if you have any particular questions, do ask. Members here really do want to help, and you'll always find understanding and a listening ear.