Need Help So I Can Care For WW2 Vet

I am providing home care for my 92 year old grandfather who is a World War II veteran. As I am sure you can imagine, this is  a labor of love that is quite time consuming. His health is declining due to a brain tumor and my family and I have chosen to keep him at home rather than putting him in a facility.  My time with my grandfather is amazing and I am happy to be able to care for him but it has inhibited me from working full time anymore. I am also a veteran of the US Army. I was previously working for the US Postal service before making the choice to care for him full time.  I am a father and this choice is limiting me financially because I am not often able to leave the house.  I would like the opportunity to start up a home based business so that I can still provide for my children as well as be there to care for my grandfather during the time when he needs me the most. Please consider helping me start this business so I can continue to provide the best care for him and still somehow stay afloat. Thank you!