Hello
@Debbie 1973 and welcome to this supportive and friendly forum. There is a wealth of shared experience of dementia here, so I am glad you have found us.
I am sorry to read of your Mum's diagnosis. It's tough for sure, to try and support and care for a loved one, and you probably know already that now is the best your Mum will be.
It sounds as though you need further support - you have your own life and a 9 year old to look after - please do have a think about contacting Social Services for a Care needs assessment. The following link may help:
This page looks at how a person with dementia can get a care assessment, who does an assessment, how they are carried out, who makes the decision, and tips for making the most of the care needs assessment. It also explains the eligibility criteria.
www.alzheimers.org.uk
Please do remember you will always find understanding and a listening ear here from members that really do want to help. And use the forum if you need to let off a bit of steam. it sometimes helps to get it down in writing on here.