There are many ways to push yourself forward during bad times. You can be strong, focused, and disciplined.
The most simple and best cure for a personal low, however, is to stop for a moment. Take a deep breath. Count your blessings. And smile!
The mere physical act of smiling, the activation of those face muscles, stimulates the release of hormones that put you into a better mood.
Smile, breathe, and go slowly. (Thich Nhat Hanh)