The belief that one can master a situation and produce positive outcomes is known as:

Self-efficacy is the belief that one can master a situation and produce positive outcomes through one's own actions.

Self-esteem is the overall sense of one's own worth, not a task-specific belief in capability.

Self-actualization is Maslow's realisation of one's full potential, not a belief about controlling a situation.

Self-regulation is the control of one's own behaviour and emotions, not the belief in one's competence.

Self-efficacy shapes the goals people set and the effort and persistence they invest.

Albert Bandura developed the concept of self-efficacy within social cognitive theory.