the trait of being highly motivated

marked by aggressive ambition and energy and initiative

press, drive, or impel (someone) to action or completion of an action

strive and make an effort to reach a goal

exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for

renewed energy or strength to continue an undertaking

The quality or state of being tenacious, energetic, spunky.