When you’re working too hard and you feel like you can no longer go on because you’re too tired, simply take a break. You can’t let exhaustion stop you from accomplishing your task. If you do and you make a habit out of this, you won’t get anywhere. Don’t stop when you’re tired, stop when you’re done. Of course, it’s all right to take a break in between because you need to recharge so the quality of your work would not suffer.
Taking a break can clear your mind and reenergize you so you can go on to finish what you have started.