How can I get a nurses waiver where the state could pay me to care for my grandmother?

Hi, my name is Rachael I am 21 and I quit my job May 1 2007 to care for my grandfather who has Alzheimers and is bedridden and my grandmother who has had 3 open heart surgeries and a pace maker. During her last open heart she had a major stroke which left her legally blind. I am married and having a hard time making ends meet and a harder time trying to get help fincially. My grandmother pays me what she can but not enough to live on and I was wondering if anyone knew how to go about getting a nurses waiver where the state could pay me. If anyone has any information at all please let me know. Thank you for your time.
Sincerely,
Rachael Cramer