Carusa was born and raised in the North County[4] area of San Diego, California, alongside her mother Nicole, father Richard, and siblings Scott, Kelley, and Jordan.

[15] Sky Blue FC chose to waive Carusa, who was then picked up on the NWSL waiver wire by the Utah Royals.

[26] In August 2023, Carusa joined her hometown side San Diego Wave FC on a free transfer.

[30] In the match, Carusa headed in a corner kick from teammate Makenzy Doniak in the 75th minute, scoring the game-winner for the Wave.

[33] Additionally, she played in the Wave's semi-final match against the OL Reign, coming off the bench in the 88th minute for Danielle Colaprico.

[34] In her time on the field, Carusa forced a save from Reign goalkeeper Claudia Dickey,[35] but the Wave ultimately fell 1-0 to their opponents.

[38] On March 15, 2024, she played 45 minutes in the Wave's 1-0 NWSL Challenge Cup victory, taking home the trophy with her team.

[39] Carusa scored two goals at the start of the NWSL regular season before picking up a thigh injury[40] in late June.

[41][42] Ahead of 2025, Carusa exercised her player contract option with the Wave, keeping her in San Diego for another year.

Carusa made her debut for Ireland on March 11, 2020, entering the match versus Montenegro as a second-half substitute for Clare Shine.

[49] On June 27, 2023, Ireland head coach Vera Pauw included Carusa in the team's 2023 FIFA Women's World Cup squad.

[50] Carusa started all three matches,[51][52] including a full 90 minutes in Ireland's final group stage game versus Nigeria.

[53] In Ireland's match against Canada, it was Carusa who created the corner kick opportunity in the 4th minute that teammate Katie McCabe scored from.