She later obtained a Fulbright Scholarship to the United States of America, where she graduated from the Center for Justice and Peacebuilding at Eastern Mennonite University in Virginia.

[1] She has served as the Program Officer for Peace-building and Traditional Law at the Center for World Religions, Diplomacy and Conflict Resolution in Arlington, Virginia.

[2] In May 2021, she came under pressure to resign and been subjected to personal abuse after she called Turkey to comply with the UN resolutions and withdraw the Turkish troops and mercenaries from Libya.

After the announcement of a meeting between Mangoush and Israeli Foreign Minister Eli Cohen in Italy on 27 August 2023, she was suspended, and an investigation was opened against her.

[3] She fled Libya first to Turkey and later London, where her family resides, the same day out of fear for her safety amid a growing uproar in Tripoli over the issue.