Learn to work through "can not". Man often just seems that his strength exhausted, and have no resources for action. In fact, the possibility of human nature are endless. And the only one who becomes an obstacle to achieve something - is the man himself. We must always remember that there is such a problem that could not be solved, there is no obstacle that can not be overcome. The most important thing - is to act in spite of everything. The more that the most difficult to make the first move, breaking the barrier of uncertainty, then everything starts to go, as if by itself and does not require much effort.
How frequently you need to think about their achievements, victories, about how you get out of difficult situations before. And the best record each of his victory, albeit very small, in the notebook. This will help you to show that you have experience of achievements, which means that you have the strength to do it again. Do not let someone's criticism affect your mood. Of course, do not pay attention to the opinions of people can not. But we must learn to filter what you hear around and listen only to those who are really on your side.