Act as if you have the quality you want. Pretend you are an actor. If you feel you lack courage, act as you might think a brave person might act. If you feel you are withdrawn and unfriendly, then act as if you are friendly. If you feel lazy, perform the actions of an energetic person. You will find that you will grow accustomed to behaving in this way. Actions lead to habits, which lead to character.

Hello Himoon, You can't be a total failure , that is really a sign of lack of self confidence. If you want to improve yourself and correct some of your attitude or behavior, that is another thing ,because no one is flawless. First you have to acknowledge the defect ,then work on improving yourself by trying to alter that attitude ( if it is a bad habit for example) by better understanding its negative impact on you and by adapting instead some good habits.

Hi Himoon. Feeling like a failure might be better reframed as an excessive tendency to compare oneself to others. If you have an uncritical belief that worth can be measured by money, status or fame you are setting yourself up for unhappiness and missing out on other very important areas of human experience. Why not pat yourself on the back for all that you've accomplished so far? Sometimes we've got to remember to do that! That's a crucial step - it helps to feed us energy. What do you want to change? Your weight? Job? Relationships?