I'm done

I need more and better sleep. Between work and the kids, this is getting ridiculous and I don't think I can take it any longer. In the Screwtape Letters, there is a relevant excerpt on fatigue:

The paradoxical thing is that moderate fatigue is a better soil for peevishness than absolute exhaustion ... It is not fatigue simply as such that produces the anger, but unexpected demands on a man already tired. Whatever men expect, they soon come to think they have a right to: the sense of disappointment can, with very little skill on our part, be turned into a sense of injury ... To produce the best results from the patient's fatigue, therefore, you must feed him with false hopes ... Exaggerate the weariness by making him think it will soon be over; for men usually feel that a strain could have been endured no longer at the very moment when it is ending, or when they think it is ending. In this, as in the problem of cowardice, the thing to avoid is the total commitment. Whatever he says, let his inner resolution be not to bear whatever comes to him, but to bear it "for a reasonable period" - and let the reasonable period be shorter than the trial is likely to last. It need not be much shorter; in attacks on patience, chastity, and fortitude, the fun is to make the man yield just when (had he but known it) relief was almost in sight.

Perhaps relief is in sight, perhaps not. There are plenty of people worse off in this regard than me - including my wife, my sister-in-law NGR, and her husband TR. Honestly, that doesn't give me much (if any) comfort. Clearly they are better people than I am in this regard. I'm at my breaking point. On this count, the Devil appears to have won since my "reasonable period" came to an end last night. I'm not sure what to do. Physically and mentally I feel defeated ... I'm done ... game over.