Miller was born in Freeport, Bahamas, and later moved to Canada where he attended
Crestwood Preparatory College in Toronto. There, he became one of the program's top scorers and earned attention from U.S. college recruiters. In 2018, Miller committed to play for
Ole Miss in the
Southeastern Conference. He redshirted his first season due to injury and appeared in 19 games during the 2019–20 campaign. Seeking more playing time, he transferred to
Florida Gulf Coast University (FGCU) where he played four seasons. During his tenure with the
Eagles, Miller became a regular rotation player and averaged 7 points, 3 rebounds, and 2 assists in his senior year. == Professional career ==