We are torn between nostalgia for the familiar and an urge for the foreign and strange. As often as not, we are homesick most for the places we have never known. We may go there through our imaginations and the written word.
Your are your 'selfish' years. It's a decade to immerse yourself in every single thing possible. Be selfish with your time and all the aspects of you. Tinker with shit, travel, explore, love a lot, love a little and never touch the ground.