short feeling of remorse

I look at some freshmen today and i feel like i've lost so much of my hunger and passion for everything..i used to get so excited about the smallest of things, put my all to anything i do, seek so much more than what is already in front of me. i want it back, i envy them, so fresh, unbeaten, full of hope for anything..there's no pain and sadness and regret on a clean plate. i envy that so much..a clean plate. :(