Disable=Unable?

Miss Oh is a sufferer of cerebral palsy, she cannot control her movements so flexibly. When people see her they often think that she has some kind of "infectious" disease and they keep a distance from her.
Her childhood was not easy at all, she was the youngest of the five children. Her mother was bed-ridden and had chronic skin disease. His eldest brother was a gambler and lost all her parent's savings away. Then her father got colon cancer and almost killed himself and the diagnosis. He died 8 months later.
Her friend, Ms Lui, motivated and encouraged her to climb Mt Kinabalu but she too succumbed to the colon cancer. After climbing Mt Kinabalu, she started to write about the book called, Scaling Walls, she met into some problems during the printing and publishig period. Miss Oh and her friends put together ten thousand to start up a company.
She hopes that by doing these, she will be invited to schools to be a speaker. She had donated some of the money earned by the selling of the books to the needy. She wants to tell everyone that the disabled can be successful and the disabled must not lose hope they must keep fighting to achieve their dreams.