In April 2019, she embarked her Everest expedition and she successfully climbed the Mount Everest on 23 May 2019, attempting from the Northeast ridge of Tibet. She became the first Jordanian woman and third Arab woman to achieve the feat. Dolores also became the first Arab woman to successfully climb Mount Everst from the Northeast ridge. She also filmed her journey to the Everest herself, and released it as a documentary titled The Lone She, which premiered on the National Geographic Abu Dhabi on 8 March 2020, coinciding with the International Women's Day.