Recognize the Road to Burnout -spiritually

It's important to catch it sooner rather than later: for your own good and the good of your nearest and dearest -they're the ones who suffer the most from it in the early stages; believe me. So do check this article out and file it away for future use if necessary.
Running on Empty? How to Recognize When You're on the Road to Burnout | Psychology Today
Among the things that it points up as potential signs are these:

"Psychological signs, such as loss of enjoyment for activities once enjoyed; sadness; excessive anxiety or worry; panic attacks; feeling trapped without options for relief or escape; loss of motivation; loss of concentration; emotional hypersensitivity at seemingly inconsequential things; feelings of helplessness, hopelessness, or pessimism; and/or increasing feelings of irritability, frustration, or anger"

For Christian (and from experience) I would say that some of these impact your prayer life especially loss of enjoyment of activities once enjoyed, loss of motivation. Some of the other things are the kinds of things that show up in self-examination and the danger is to misdiagnose them by simply telling yourself (and God) that you've done and thought wrong. Thing is it may not be the wrong you think. The real sin may be lack of self care so that you don't have the energy to give properly to others and to other-care. That's not ot say that you have an excuse to be irritable (or whatever); just that the response should be to take appropriate care of yourself (and keep the spirit of the law on Sabbath) rather than simply confessing and moving on ... to repeat again because you're still tired and worn down. The sin then is to continue in the burnout patterns rather than seeking to sabbath.

test yourself. Leave work on a Friday and commit to treating yourself to a relaxing, stress-free weekend. Don't bring any work home, sleep in on Saturday and Sunday morning, eat right, and occupy your time with activities that you rarely allow yourself to enjoy (yes, I know you're busy, but trust me--make the time).

If you wake up on Monday morning feeling exactly the same as you did before your time off, you're probably going to have to make some pretty significant changes in your lifestyle to turn things around.

Willpower is depletable

As I read this report: Rough Day At Work? You Won't Feel Like Exercising, I found a question forming in my mind: is this, in God's providence, part of the point of Sabbath?
Here's the summary statement: "A new study, published in Psychology and Health, reveals that if you use your willpower to do one task, it depletes you of the willpower to do an entirely different task."
If we are trying to build communities where people are able to formulate and carry through moral choices which often may involve resisting temptations to do more easy or conformist things, then we clearly need to be helping people to find the time to rest adequately to 'rebuild their moral fibre'. This has implications for the way we run our churches, clearly. I feel vindicated in trying to help create less frenetic communities of the kin_dom...

But perhaps that's skipping too far ahead, after all the research is about resolving to exercise. However, it's hard not to think that it has wider significance. Sabbath is not the only strategy for 'building moral fibre' ...

"There are strategies to help people rejuvenate after their self-regulation is depleted," she says. "Listening to music can help; and we also found that if you make specific plans to exercise—in other words, making a commitment to go for a walk at 7 p.m. every evening—then that had a high rate of success."
She says that by constantly challenging yourself to resist a piece of chocolate cake, or to force yourself to study an extra half-hour each night, then you can actually increase your self-regulatory capacity.
"Willpower is like a muscle: it needs to be challenged to build itself,"

So routines and habits can help as can exercising moral fibre. I'm guessing a supportive social environment is going to help too.

You Can't Make Up For Lost Sleep

For those who have ministered among students, and even ministered overlong weekly schedules, this research calls us to honour sabbath in the daily as well as the weekly routine. "Chronic partial sleep loss of even two to three hours per night was found to have detrimental effects on the body, leading to impairments in cognitive performance, as well as cardiovascular, immune and endocrine functions. Sleep-restricted people also reported not feeling sleepy even though their performance on tasks declined."
It's that latter that is concerning: those who have charge of organisations that could affect the welfare of many or even the country definitely should not be working under sleep deprivation conditions. Yet the machismo of our working culture seems to encourage it to happen... Even worse, it infects some church leadership circles.
ScienceDaily: Chronically Sleep Deprived? You Can't Make Up For Lost Sleep