The first time I remember writing for the sake of writing when I was probably about ten. It was a Tokyo Mew Mew fanfic, and looking back, it was absolutely awful. It was filled with grammatical errors and randomly capitalized letters, plus the plot was suuuuuuuuper rushed. XD I finished it, but it was the only story I wrote for fun that I finished in the next six years. Not too long after that first fanfic, I got into RPing via Neopets and then PE2K, and my writing made leaps and bounds even though I never finished anything... And then I got to high school, and a friend of mine complained about how I never finished anything, so my junior year of high school was spent writing what would become a 20 page long Kingdom Hearts fanfic called Sinless, which finally made it online after a LOT of technical difficulties... Like my grandma spilling milk on my keyboard and killing several of my letters. It was far better than that first fic, but it was far from perfect (one of these days I swear it's getting the rewrite it deserves). I've continued to RP and write since, finishing several smaller fanfics and undertaking then not finishing one massive fanfic, mostly because I've moved on to trying to finish stories based on my own ideas.

I feel like my greatest improvement lies in description and wording. If you look at anything I wrote years ago, it's clear there is a huge difference between how I wrote now and how I wrote then. I feel like I've picked up a more poetic feel to my writing in general, and I love it. Definitely a long journey, but one well worth the travel.

EDIT: And obviously I got a lot more long winded.