Most people would try and work flat out, but you see, that can have the regular side effects such as exhaustion and that is the last thing which you would need. So if you feel tried, don't push yourself beyond a barrier which is there to protect you.
At the weekend, take time off. That's when you are free to have a time-out and just recharge your batteries. I had to learn that the hard way, quite recently in fact.
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