I am in awe of some of the wonderful responses. I am sorry that you are struggling.
AO, I am in a similar situation, I can not say how I am coping sometimes, and know that at times I clearly am not.
I do know that I am being stretch more as a human being than ever before, perhaps even more than motherhood...
I am very different person now because of my situation. I think I am becoming a more rounded, big picture, I definitely have adapted more spatial intelligence, LOL. AND...definitely not sweating the small stuff. My circumstances keep me preoccupied in my daily activities and can be consuming.
AO, I love this line in the serenity prayer " Grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference." It helps. x