'Live each day as if it's your last', that was the conventional advice, but really, who had the energy for that? What if it rained or you felt a bit glandy? It just wasn't practical. Better by far to simply try and be good and courageous and bold and to make a difference. Not change the world exactly, but the bit around you. Go out there with your passion and your electric typewriter and work hard at ...something. Change lives through art maybe. Cherish your friends, stay true to your principles, live passionately and fully and well. Experience new things. Love and be loved, if you ever get the chance.
If I tried, I could not more wholeheartedly recommend a book. One Day by David Nicholls. Do yourself a favor and begin reading it immediately.