She is a co-founder of the "Just Begun Foundation", which sponsors social initiatives to help integrate peripheral and marginalized populations in Israel, with an emphasis on the Haredi sector.

In 2019, she joined the Israel Resilience Party, which is part of the Blue and White political alliance, and was placed #23 on the faction's list for the April 2019 Knesset election.

[5] During her youth, her parents volunteered in the Jewish communities in the Soviet Union, and at age 16, she taught Hebrew and Judaism in Russia and Ukraine.

[6] Yankelevich is a co-founder[2] of the "Just Begun Foundation" (Hebrew: קרן רק התחלנו), which sponsors social initiatives to help integrate peripheral and marginalized populations, with an emphasis on the Haredi sector.

[2] Yankelevich has defended the Haredi population against the Israel Women's Network and other liberal feminist groups that vilify it for its enactment of gender separation in institutes of higher learning and at public events.

[3][9][10] In 2019, Yankelevich was chosen by Benny Gantz to be a member of his Israel Resilience Party, which was part of the Blue and White political alliance for the April 2019 Israeli legislative election.

[11][12] Her appointment was seen as an attempt by Gantz to present the party's political orientation as centrist, rather than left, although her presence was not expected to pull in Haredi votes.