[5] For the next three seasons, her team, now led by Ariel Traxler, competed in the United States Junior Curling Championships but were unsuccessful in reaching the playoffs.

[6] At the junior championships, her team started with four straight wins before losing their last three games, missing the playoffs for a fourth consecutive year.

After going 4–1 in the round robin, they beat Andie McDonald in the semifinal before losing to Delaney Strouse in the gold medal game.

[10] After the event, O'Hara was added to the Strouse rink as their new third, replacing Leah Yavarow ahead of the 2021 United States Olympic curling trials.

Through the round robin, the team finished in second place with a 7–2 record, suffering losses to Latvia's Evelīna Barone and the top ranked Norway's Eirin Mesloe.

[15] O'Hara and Thurston teamed up again for the 2022 United States Mixed Doubles Curling Championship where they lost in the final qualifying event.

Joining Strouse fulltime for the 2022–23 season, O'Hara found major success, beginning at the US Open of Curling where they had an undefeated run until the final where they were defeated by Ha Seung-youn.

The team was dominant through the round robin, with Strouse, O'Hara, Sydney Mullaney, Rebecca Rodgers and Susan Dudt securing an 8–1 record, finishing just behind Korea's Ha Seung-youn who was their sole loss.

[18] Continuing their momentum from the season, Team Strouse finished 6–1 through the round robin at the 2023 United States Women's Curling Championship.

Facing Italy's Stefania Constantini in the final, they scored three in the seventh end before stealing a single in the eighth to complete a 6–5 comeback.

[24] After a semifinal finish at the 2023 Stu Sells Oakville Tankard, Team Strouse won the Mother Club Fall Curling Classic by winning seven straight games.

[25] With all the points they accumulated in the first part of the season, the team qualified for the 2023 Tour Challenge Tier 2 Grand Slam of Curling event.