Imagine when things don't go well as you expected. How would you handle that? Of course, it is not a good idea to feel depressed since that will make situation even worse. So, when you face difficulties, just stay calm and be tough, and everything will be alright.
The above attitude can be applied to many things including photographing. Below is a real story of a man from Thailand.
It happened during his trip to French. Alike other tourists, he planned and dreamed that he could take photos of the Eiffel Tower in the morning of a partly cloudy day. Unfortunately, the weather of the day he went to the Eiffel Tower was pretty bad. More specifically, it was too cold (taking a glove off was nearly impossible so he couldn't hold his camera well), and the sky was not clear at all. Furthermore, he just realized that the normal spot where photographers always stand and take pictures was closed for maintenance that day.
At first he felt very disappointed and thought that he should pack his photo equipments and go back to the hotel. However, after he tried to calm down his mind and stay focused, he thought it was not time to give up yet. He, then, started shooting more and more photos. Finally, he got some luck. He saw another man, a bird, and the Eiffel Tower. Each was at the right place for the great composition. Below was that great shot, the gift from being tough and not giving up.
(story and picture source: go_med @ rpst-digital.org)
See also
3 Essentials for Great Pictures
More on Shooting Tips