I dropped out halfway through my first year. I was studying English Lit and I had an awful time. Didn't understand any of the course material, found it unbelievably dull, felt like I was getting nothing out of the course and became very disillusioned.
I also had depression and anxiety, which were undiagnosed at the time but I finally got diagnosed when I was at uni; by then though, I'd missed most of the assignments, had made no friends and was pretty sure I didn't want to do that degree any more anyway.
I dropped out, went home, went to therapy/started medication and got a job in admin for the remainder of the year. I went back to college in September to do an art course and now I'm applying to study textiles in time for 2014, which is the year all my friends will be graduating. I could have continued worked full time, but didn't really know what I wanted to do and I'm not qualified for anything other than a minimum wage job; believe me, if there was a way to instantly move out of my parents' house and earn enough money to make a living without getting a degree, I'd be doing it! Anyway, I didn't see the point in waiting around, which is why I jumped back into education pretty much straight away.
Sometimes, I feel bad when I look at where my friends are now (and my brother, who's two years older than me, just finished his degree and is already hugely successful) but I figure it's not a huge deal - it seems like a lot but it's only a few years, really - and I'm still not one hundred percent sure what I actually want to do with my life but I'm in a much better place to enjoy university now. Provided I get in, of course.