The term 'semi-pro' is used to describe someone who is not a professional but has some experience in a particular field. It is often used to describe athletes, musicians, or other performers who are not paid for their work but have some level of skill and experience. The term 'AMBIVALENT' means having mixed feelings or contradictory ideas about something. In this context, it could refer to someone who is semi-pro, feeling both pride and uncertainty about their level of skill and experience.