I have been where you are.It isn't going to be long before your friend will need more help than you can give him. Then there will be no choice for him but to go into assisted living. People who are caregivers for others quite often get so caught up in caring for the other person that they forget that they too need to be taken care of. I suggest you talk to the VA and tell them you will be going on a vacation so they need to find someone to take over his care. Then go on a vacation, do something you enjoy doing, just get away and let your mind refresh itself without all that worry. It helps.