I've been out of college for 21.5 years, now, and it's been on huge adventure after another. I think the key is to get out of your secure little rut-filled world and do something because it's interesting.
Frankly, if I told you all the cool stuff I did in the last month, alone, you wouldn't believe me.
You can either face the day with trepidation, or you can wake up excited, wondering what kind of excitement is in store for you, today. And the decisions you make now will make the difference, tomorrow.