Choosing a field of further education often causes confusion among high school students, a challenge evident at SMAN 19 Gowa, where the 20 participating twelfth-grade students mostly come from lower-middle socioeconomic families with limited access to career consultation and an insufficient guidance-counseling (BK) staff ratio. Objective. This community service activity aimed to improve students' understanding of major-selection strategies through career literacy education. Method. Using a one-group pre-test-post-test design, 20 students completed a validated 20-item Likert-scale (1-4) questionnaire covering five aspects: career literacy, self-interest, talent identification, self-potential, and selection strategy, through socialization, material presentation, self-assessment, discussion, and evaluation. Results. The average score rose from 48.4 to 85.0 (75.6% gain; N-gain 0.71, high category), with the highest improvement in talent identification (88.9%) and lowest in career literacy (61.5%); qualitatively, 85% felt more motivated, 80% understood their talents better, and 65% felt more confident. Conclusion. Career literacy education effectively helps students align self-understanding with study programs and future careers, offering a replicable model; regular BK integration and continued mentoring are recommended.