Your lack of confidence shows in your body language, in the way you communicate with others and the way to present yourself.
Many people can benefit with professional help is building or regaining confidence in life. There is no age bar. Right things can be done at any age to live a happier and fulfilling lives. Psychologist will help you integrate yourself and build your confidence and self esteem. In order to be more successful and influential you need to take mutually agreed upon sessions with the psychotherapist.