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.
I feel like we all have felt like Regina George in Mean Girls when the, You can't sit with us line is tossed out. It hurts, real bad. We already feel like frauds, we already believe lies, this is just one more that holds us back.