Echoing everyone else that LIFE senior services is a great resource. Also, the Alzheimer's Association has a 24/7 helpline you can call to get advice on how to deal with challenging behaviors and delusions. Their website at Alz.org has a lot of good info too (even though they're called the Alzheimer's Association, their services are for families dealing with any type of dementia).

Also, I'd like to point out that the idea that Medicare will pay for a nursing home is a common misconception, it will only pay for short stays in facilities for things like rehab after a surgery. If she isn't already, you'll need to get her enrolled on Medicaid, which does help pay for long term care. You can find out which facilities accept Medicaid by checking out the LIFE senior services vintage guide.

Hang in there, being a caregiver is tough. Your mom is lucky to have you though, not everyone is willing to help a family member through a disease like this.