Forrest averaged 4.9 points, 2.7 rebounds, 1.6 assists, and 1.2 steals per game as a freshman, playing backup point guard to Xavier Rathan-Mayes.[5] As a sophomore, Forrest finished fifth on the team in scoring with 7.9 points per game and third in rebounding with 4.9 per game, helping Florida State reach the Elite Eight.[6] During a game against Villanova on November 25, 2018, Forrest had the cartilage torn completely off the bone in his big toe, yet played through pain and did not miss a single game.[7] During the 2019 NCAA Tournament, Forrest scored 20 points and had five rebounds in the Sweet 16 loss to Gonzaga and was named to the West Regional All-Tournament Team.[8] As a junior, Forrest averaged 9.3 points, 4.5 rebounds, and 3.7 assists per game.[9] He graduated from Florida State in December 2019 with a degree in sports management, and he earned the Skip Prosser Award for best scholar-athlete in the ACC since he carried a 3.43 GPA.[3] At the conclusion of the regular season, Forrest was selected to the Second Team All-ACC and to the Defensive Team.[10] He averaged 11.6 points, 4.4 rebounds and 4.0 assists per game as a senior.[11]
Both his mother, Barbara Lee, and his father, Lester Forrest, played basketball at Chipola Junior College. His mother is the pastor of the All Things New Worship Center and Forrest played drums in the church.[1] His father is the manager of Gilmore Park for Chipley's recreation department and built the youth basketball program in the town. Forrest has an older brother, Trey, who also played basketball.[2] He is a cousin of basketball player Saben Lee.[19]
