The article analyses the importance of mentorship to the development of a professional identity based on biographical narratives and the researchers’ reflection. Mentorship is interpreted as a multifaceted process, combining professional growth, emotional resilience, the revision of value orientation, and the meaningful consolidation of a professional path. The research is based on interpretivist epistemology and biographical interview, using narrative and thematic analysis, which allows us to reveal how the participants in the research construct their professional identity, and in what ways mentoring experiences become the turning point in professional transformation. The results of the research show that mentoring acts not only as a means of strengthening professional competences, but also as a space for professional transformation, self-awareness, and the creation of professional meaning.