It is a basic fact of life that stuff must get done. We also occasionally need to have a sense of accomplishment - it can feel good to get stuff done. But what stuff, and how often?
We are often told that life is hard, but not told that at times it should be, and can be, easy. Getting by does not need to be a constant struggle.
As the Zen saying advises, 'sit quietly, do nothing, and still Spring comes and the grass grows by itself'.
So rest, take a break, do nothing. Heck, go as far as to be idle, slack, and daydreamy for a while. Then, when it is time to do something you will be able to give 100% of yourself.