'Dear younger self…': using a photograph think-aloud method to explore the lessons university students would pass on to their teenage selves

University can be a time of identity shift and transition for many and for some, the worries of adolescence can start to subside. Aims: This qualitative study explored the lessons those in their final year at University would say to their younger selves using a novel photograph prompted think-aloud method. Final year University students (n = 42; aged 20-24) were asked to look at a photograph of themselves in their mid-teens and think-aloud about the lessons learned since this time. The transcripts were analysed using thematic analysis and described three main themes: 'create a safe space' to ensure a positive environment around you; 'look around you and take perspective' involving looking outwards to realise that things could be worse; 'look inwards and trust yourself' by listening to your feelings. Transcending these themes was the value of learning to 'be patient and accept change' and an overarching lesson to 'pay attention to what matters'. The lessons University students would give their younger selves involved regulating both their internal and external world, being patient and paying attention to aspects of the world that enhance wellbeing. These lessons provide an insider's voice which is both relatable and inspiring for other young people. Further, they illustrate the application of a novel photograph prompted think-aloud method which could be used to elicit lessons learned from a wealth of life stages and reflections of recovery after both physical and mental health problems.