What term describes the belief in one's own powers and abilities?

The term that describes the belief in one's own powers and abilities is self-confidence. Self-confidence is crucial in various aspects of life, particularly in fields like cosmetology, where professionals must trust their skills to provide effective services. It allows individuals to take on challenges, make decisions, and engage with clients assertively.

Self-awareness involves recognizing one's strengths and weaknesses but does not encompass the belief in those abilities. Self-doubt refers to a lack of confidence in oneself, which is the opposite of self-confidence. Self-esteem relates to one's overall value or worth as a person, which can include but is not limited to self-confidence. Therefore, self-confidence specifically addresses the belief in one's capabilities, making it the correct choice in this context.