I've been writing a lot of non-fiction lately, whether for school or for myself, and I've found that I like it in a lot of ways. It's different from my usual fare of fiction with the odd smatterings of poetry.
Sometimes it feels rather limiting though. I tend to write stream-of-conscious, so I have to go back and make sure my points all add up in the beginning the same way they do in the end. Also, it feels as though I am stuck with only a sliver of real-life, rather than a whole expanse of fiction-life.
I don't know how exactly to explain it, but there is a difference and it is both liberating and limiting.
It's nice to be writing, in any case.