Yu competed at the 2021 Chinese Youth Games, finishing ninth with the Shanxi provincial team.

[3] Then at the 2022 Chinese Championships, she finished fourteenth with the Shanxi provincial team and thirty-second in the all-around qualification round.

[4] Yu was selected to compete at the 2023 Junior World Championships alongside Jiang Shuxuan and Qin Xinyi, and the team finished in sixth place.

[5] Individually, Yu qualified for the balance beam final in second place behind Japan's Sara Yamaguchi with a score of 13.100.

[7] Then at the 2023 Junior Asian Championships in Singapore, Yu helped the Chinese team win the silver medal behind Japan.