If only it had been written that way. It was more about Martha gaining confidence within herself by the challenges she faced from meeting the Doctor.

Remember her doubting weather she would pass her medical exams in "Smith and Jones"?

By the finale, she knew "I'am good". No Martha, you were awesome!

If walking the earth to save humanity doesn't make a person, I don't know what will. Martha put up with alot of crap and did so much. Gosh it's all coming back to me.*flashbacks*