Quarter life crisis?

I remember blogging a couple of years ago about turning 23 which to me at that time had seemed a big deal. Now that I am on the threshold on 25 I couldn't quite remember why I had felt that way - so decided to go back and read it. Apparently the big deal was that 23 is closer to 25 that it is to 20 - and by 25 I better officially be an adult and have figured out what I want to do with my life.

But here I am at 25 still unsure of what to do. When will I finally grow up?

My birthday this year feels a little strange. Most years I start counting down a few weeks in advance and getting excited about nothing in particular. But here I am just 2 days before the so-called big day feeling a little pensive. What is it that I want from life? Here I am at a great business school, learning so many new things, meeting so many amazing people - who all seem to have life all figured out. Yet here I am almost drifting. But then this is how I've always been - it's just that I have been incredibly lucky to have ended up at the right place every time. I was always afraid that my luck would run out one day, but had hoped that by then I would have started to make decisions based on logic and knowing what I want.

What is it that I feel? People talk about midlife crisis - but is there such a thing as a quarter life crisis too?