Not just a willingness to work hard, other formulas that are also not less important is consistency when working in a field. Grandparents Habibie said when he decided to become a flight engineer, he focused on the domain. Though faced with various challenges he did not then come out and play direction.
Instead he thus occupied the field until now managed to become one of the best aviation experts in Indonesia even the world. From the experience we got Grandparents Habibie lesson if for being the experts it needed consistent studying one thing in depth. For example, if you've decided to become a writer keep sharpening the bakatmu to become a professional writer. Do not easily discouraged when people don't like your paper. Make writing more until someday you writing preferred.