I know that most of the responses have been about getting the boys whipped into shape, but I understand that is easier said than done. The part where you said you are tired all the time, also applies to whipping the boys into shape I would assume. I am dissabled too, not from a stroke but I have a very unusual spinal condition. I have been paralyzed, then walked again, then nearly paralyzed twice more. I get how hard them come back can be. I don't know why hiring someone hasn't worked, but it won't work for me either due to our location.
Here is what I suggest. Start really small, and really appreciate yourself for it. If you could just do one thing every day for a week, and keep that area looking good for a week, then maybe you can expand a little. I don't mean anything big here. I am talking like keeping the coffee table cleared off at the end of the day. Once I am able to get a little control of something the ball starts rolling in a more positive direction and it becomes contagious. Also, I don't know where your partner is in this matter, but I definately enlisted my husband in VERY SPECIFIC tasks. Like he does the laundry every tuesday. It just helps out to have him share the load.
As a disabled person, I think I find myself unwilling to ask extra of my children because I already feel incredibly guilty that they don't have a normal mom. It is hard for me to imagine asking more of them, and I know that I do this to their detriment, but I do wish that other people understood how hard it can be to wrestle with the normal pressure that society puts on parents multiplied by the fact that I can't always get on the floor to play, or that sometimes my children have to wait while I try to figure out how to get my feet to walk down some steps.
Thanks,
N.