Many TESOL (Teaching English to Speakers of Other Languages) programmes focus on providing professional knowledge to Asian teachers who are pursuing their degrees in English-speaking countries. However, not much attention is given to their expectations, personal lived experiences and identity construction while studying in these countries. These aspects are important in their development as users and teachers of English. This article explores these aspects through interviews and email correspondence with Thinh, a highly accomplished TESOL professional who pursued a Master of TESOL degree as an international student in Australia. Findings suggest that when she was in Australia, she displayed strong agency as she changed some aspects of her identity in order to adapt to studying and living in the country. Nevertheless, there is also continuity in her identity construction, as she maintained other aspects of the identity that she brought from her home country. Her identity construction is best seen in the context of her investment in her career in her home country. As a resilient individual, Thinh demonstrates how she manages her process of identity construction through her reflections and strategic thinking. The findings of this study suggest the need for TESOL programmes to actively connect international students' lived experiences outside class to their pursuit of professional knowledge.