The way to learn to do things is to do things. The way to learn a trade is to work at it. Success teaches how to succeed. Begin with the determination to succeed, and the work is half done already.
My grandfather once told me that there were two kinds of people: those who do the work and those who take the credit. He told me to try to be in the first group; there was much less competition.
To succeed, you must have tremendous perseverance, tremendous will. "I will drink the ocean," says the persevering soul, "at my will mountains will crumble up." Have that sort of energy, that sort of will, work hard, and you will reach the goal.