This longitudinal study draws on data from a larger project and examines how students' perceptions of their opportunities to influence their study environment may be enacted in approaches aimed at influencing their studies, and whether this changes during the course of their studies. Ten students from a 4.5-year Master's program in Engineering were studied throughout their education by means of semi-structured in-depth interviews, which were analyzed thematically. The results indicate that students' perceptions of their study environment were enacted in three approaches aimed at influencing their study environment: (i) to adapt to the environment and to study alone; (ii) to try to change the program, to create an individual curriculum and to interact with teachers; and (iii) to cooperate with their peers. The thematic analysis suggests that students' perceptions of their study environment were enacted in the different approaches and that these changed along with external demands in the program. (Contains 3 tables.)