Find the time to exercise your body.
I know it can be very tough to get away when caring for an elderly parent, especially when you yourself are so exhausted, but I have found that exercise in many ways has helped me tremendously. A local gym where you can get away a few times a week can be a life saver. The exercise will really alleviate some of the stress. I know that when I don't go to the gym for a couple of weeks, I am ready to lose my mind from my care giving situation. Having gone to work out yesterday, I feel 100 percent better facing today. It does make a difference. Of course, the occasional vodka martini doesn't hurt, either. :) At least give it a try. Exercise won't change your situation, but it might make you cope better with it.