Mitchell is a three-time letterman in both football and basketball at Clackamas. He was named 1st team All-State quarterback and 6A Offensive Player of the Year, after leading Clackamas to an undefeated state championship season. Mitchell set single-season school records in passing yards (3,255 yards), touchdowns (32) and completion percentage. In basketball, Mitchell started on the 2017 6A runner-up Clackamas team. Off the court, he holds a 3.5 GPA. Following graduation Mitchell plans to serve a two-year mission for his church and is undecided on where he will attend college when he returns.