A Lincoln native and graduate of Lincoln Southwest High School, Everitt played three seasons at Nebraska from 2021 to 2023, where he became a reliable and dynamic presence both at the plate and behind it. He finished his collegiate career with 15 home runs, 78 RBI, and 70 runs scored over 126 games as a Husker. In 2022, Everitt started all 53 games and hit .291, leading the team in doubles and tying for the team lead in RBIs.