The main objective of this text is to share the process of conducting a qualitative case study that analyzed the construction of a novice school psychologist's professional identity during her first year of work in a school's guidance department. This text aims to tell "the real story behind the research"; therefore, the description of the case study is structured around the different dilemmas that the authors faced throughout the inquiry as a resource to explain the decisions made during the 5 years of research. In particular, reference is made to the decisions that had to be made in the choice of research topic, research design, techniques for data collection, data analysis, and validation strategies. Through the explanation of this case, we illustrate the multiple dilemmas that are usual to face during the research process, and we reflect on the need for methodological options that stem from theoretical assumptions and epistemological positioning. [This content is provided in the format of an e-book.]