A social phobia is a fear of interacting with others on a social level. Examples would be talking in front of other people, waiting in line at the checkout imagining others are looking at you, or even fear of talking on the phone.
Self-confidence is a feeling that allows people to have positive, yet realistic views of themselves and their circumstances. Self-confident people have confidence in their own abilities, have a general sense of control over their lives, and believe that, within reason, they will be able to do what they want and need to do.
Confidence is a perspective that is accomplished through experiences. When a person experiences success, that person will tend to expect to be successful. And that very expectation will cause a feeling of self-confidence.
For example: A man wants to be a professional boxer, so he gets a manager and takes lessons. His manager will not put him into a bout until he has developed enough proficient fighting skills. And even then, the manager will only put him up against a competitor that he knows his fighter can overpower. When his fighter beats the opponent, he is successful, and starts to gain confidence in his...