Is it just me, or is life going by way too fast?

I mean, I feel I've spent a large part of my life wishing I was older, mainly wishing I was college age. Now I'm here and it's half over. And half of the time I don't even enjoy it because I'm so stressed. 

And I'm suddenly realizing... I am twenty-one years old, I am grown up, I am an adult.

My friends are talking about getting jobs and getting married and all this... and I feel so overwhelmed by it all. I don't feel ready for all this.

When did this happen?

And why can't I just stay here for a while?

I wonder if the "Chasing Cars" lyrcisit felt the same way when he penned these words... 

We'll do it all
Everything
On our own

We don't need
Anything
Or anyone

If I lay here
If I just lay here
Would you lie with me and just forget the world?
 

Forget what we're told
Before we get too old
Show me a garden that's bursting into life