This study investigates the relationship between career decision-making self-efficacy (CDMSE) and parental attachment, dysfunctional career thoughts, and career exploration in a sample of 170 Lebanese Grade 11 students drawn from 10 private schools that provide career guidance services. The following tools were used to assess the variables: Career Decision-Making Self-Efficacy Scale- short form (CDMSE-SF), the Parent and Peer Attachment Bonds (IPPA), the Career Thoughts Inventory (CTI), and the Career Exploration survey (CES). Data were analysed using Pearson correlation and stepwise multiple regression. Regression results showed a significant association between parental attachment, dysfunctional career thoughts, career exploration and CDMSE. Career exploration accounted for the largest variance in CDMSE, followed by dysfunctional career thoughts and parental attachment. Theoretical and practical implications for career counselling are discussed.