I sometimes paint best when I'm exhausted. Being a mom of two children under the age of 6, I mostly paint when I'm tired. One thing that I remember hearing from a great Canadian painter was "remember you can still paint a great painting even when your tired". So when I am tired I have no excuses!! The other thing is I get energized by paint! I love the colors, the brush strokes carry me along until I am finished.
I did paint this in a pure state of super tiredness!! But I think it came out OK. or great even.
P.S. "Desire is the key to motivation" (Mario Andretti)