Personalized learning refers to an educational approach that tailors instruction to meet the unique needs, interests, and abilities of each learner. This method of learning aims at providing students with a customized learning experience that is more engaging, interactive, and relevant to their personal lives. With generative pre-trained transformers technology, an AI-based learning environment PTB (Personal Tutoring Bot) has been built with support for personalized learning. The author used PTB in his EE 499 Microelectronics Metrology class in the fall semester of 2023 with positive feedback from students. This paper provides an overview of the PTB design and its experiment in classroom, followed by a discussion of integrating VR/AR capabilities into PTB for metrology education. Finally, the author briefly touches the potential applications of PTB and similar AI-based tools targeting academic advising and career mentoring for college students.