It is easier to get it right the first time than correct your mistakes. Stroke your boss, make friends with successful people instead of cavorting with losers. Stretch and challenge yourself on a daily basis. Remember, when the road becomes easier, you are no longer climbing. Be punctual, there is no excuse for tardiness.
Punctuality is a symbol of discipline.
Invest in your career development purchase a book, rather than jewelry. Pay tuition, rather than buying a car. What you put in your head will last you a lifetime. Long after a car has rusted, you will be reaping the rewards of an education. Make personal sacrifices to achieve your goals.