Confidence and arrogance are two different things, that is, confidence is believing in yourself that he can do what he wants to do or in other words is believing in yourself whereas arrogant people only believe in themselves, but do not accept the opinions of others.
Pride is the enemy of goodness and truth because everyone hates people who are arrogant and feels that they are the best, so when they see people who are still not successful, they underestimate the person because they feel that he is greater than the people in around it.