https://www.alz.org/Help-Support/Caregiving/Financial-Legal-Planning/Insurance#government. This may help. Please also check at your State's Department of Health and Human Services. Every stat has DPHHS, usually a toll free line, you might also what to check into disability payments or support from your state Medicaid or the Social Security Administration.

Google " Area Agency on Aging near me", call and make an appointment to talk with one of their staff- it's all free- your tax dollars at work. They have lots of information about all the issues you're asking about. If you don't use Google, call your town hall and ask for their number. EVERY county in the US has an Area Agency on Aging and it's services are FREE.