Both my parents have dementia: dad has early stage Alzheimer’s and my mum is mid stage FTD.
They’re both at home, with two one-hour visits from carers a day. There’s a great local dementia charity that has a lots of activities during the week that they go to.
With early stage Alzheimer’s, here’s what I’d suggest.
Make sure both POAs are sorted
Get yourself registered with local carers charity (I always assumed you had to be a full time carer, but that’s not the case)
Get carers or Home Help in. Daily or to help with things like getting to activities.
Get in touch with any local dementia charities. I would avoid the big national ones, found them useless. See what’s available that’s available to your mum socially etc choirs, cafes.
If you have an Age Uk, def worth getting in touch with. They have a Home Help service that is cheaper than carers, but could still do things like take to activities.
Get Social Services Needs Assessment. Really useful, will signpost to other services where necessary, such as emergency alarms.
Care Homes obviously part of your thinking, but not always necessary, and often not this early. Neither of my parents want to go in home. My siblings and I really had to be honest with ourselves about how much our view of what they needed was shaped by our own needs (eg worry!)
Good luck. My dad is early stage, but is mostly fine. I try to help him by troubleshooting stuff he finds difficult - usually house admin, now tech too.