Live life fully while you're here. Experience everything. Take care of yourself and your friends. Have fun, be crazy, be weird. Go out and screw up! You're going to anyway, so you might as well enjoy the process. Take the opportunity to learn from your mistakes: find the cause of your problem and eliminate it. Don't try to be perfect; just be an excellent example of being human.
I believe life is constantly testing us for our level of commitment, and life's
greatest rewards are reserved for those who demonstrate a never-ending
commitment to act until they achieve. This level of resolve can move mountains, but it must be constant and consistent. As simplistic as this may
sound, it is still the common denominator separating those who live their
dreams from those who live in regret.