The phrase 'overcome herself' is grammatically correct and usable in written English.
You can use it to emphasize the effort that someone has put into overcoming a challenge or obstacle, either external or internal. For example, "After months of determination and hard work, she was finally able to overcome herself and achieve her dream."
She had faced two major obstacles in the years before the 1952 Olympic Games in Helsinki, Finland; one was removed for her and the other she overcame herself.
"When she gets there, however, she finds herself overcome with sadness and pity — something the kids neither ask for nor require.
Having successfully overcome breast cancer herself, she is currently battling several tumours in her lungs, and – thanks to an inherited mutation in her DNA – is at high risk of developing other cancers as well.
She suffers from agoraphobia and forced herself to overcome her fear of going out, but deep down, she said: "I am a hypochondriac.
Ms. Young-Bruehl argued that Anna, who became a distinguished child psychoanalyst, was born into an intense sibling rivalry with her father's best-known offspring — psychoanalysis itself — which she could overcome only by submerging herself completely in his field.
"She more often lets herself be overcome by men using such methods than by those who proceed coldly," Machiavelli continues, "therefore always, like a woman, she is the friend of young men, because they are less cautious, more spirited, and with more boldness master her" (Machiavelli 1965, 92).
She had challenged herself to overcome her fear and won.
After rescuing the three girls, Ayres tried to jump herself, but overcome by smoke inhalation, fell limply from the window, striking the projecting shop sign.
Sharon herself has overcome some major barriers in her life, she has been homeless and is an ex- addict, ex-prostitute and a domestic violence survivor.
