In life, confidence is an element that everyone should have in order to become more successful and happy. Indeed, confidence is the key to success. In fact, many young people have an admirable quality of self-confidence. They have a professional working style, dare to face all challenges and believe in themselves. Surely, they are all successful people. On the contrary, young people who are not confident will easily lower themselves and find it difficult to achieve success. First, confidence gives people strength and confidence in their own abilities. In case you can meet challenges , confident people will dare to think and do, believe in their abilities and wholeheartedly move forward, doing everything in their power. Therefore, confidence is a prerequisite on the way to success. To achieve success, people are forced to believe in their abilities, do everything within their capacity. For example, a confident attitude is a professional attitude that helps people overcome everyday fears from within themselves. We need to make a clear distinction between confidence and conceit. Conceit is flattering oneself and belittling others. And moreover, confidence is not expressed by just a lie or two, but needs to be demonstrated by actions in that job. Someone said: "The lack of confidence is not due to your lack of ability, because you do not see yourself correctly". In life, lack of confidence, also known as low self-esteem, is a pessimistic state, a negative life attitude, always seeing things worse than human reality. In my opinion, this is really a bad attitude and not right. Low self-esteem will make people lose their will, prevent progress, and inhibit the true potential of each individual. In short, low self-esteem is the enemy of self-confidence and we need to have confidence to give us strength in every journey of life.