Club Carolan joined the
Cuchulainns at a young age and joined the club's senior team in 2020. The club reached the final of the
2025 Intermediate Championship with Carolan scoring a point in their semi-final win over Killinkere. In the final against Butlersbridge, Carolan lined out at centre back, scoring a point as Cuchulainns won their first championship in twenty years.
Inter-county Minor and under-20 Carolan was captain of the Cavan under-20 team for the 2022 season. On 22 April, Carolan was in the half-back line as Cavan faced
Tyrone in the Ulster final. Tyrone came out winners on a 0–11 to 0–10 scoreline.
Senior Carolan joined the Cavan senior squad in 2022 after the Ulster under-20 final loss. On 28 May, Carolan made his senior debut in a first round
Tailteann Cup win over
Down, scoring a point as a second half substitute. Carolan made his first senior start in the quarter-final win over
Fermanagh on 5 June. Cavan went on to face
Westmeath in the
final on 9 July. Carolan started the game, with Westmeath coming out winners by four points. On 1 April 2023, Carolan was at corner back as Cavan faced Fermanagh in the
National League Division 3 final. Cavan won the match by 0–16 to 1–7. ==Honours==