I made my first contribution to the Drupal project today. I wrote a tutorial (also published on my site) and published it just now. It took me two days to do. I was pretty nervous about publishing such a lengthy first article/page as my first contribution, but I received some good feedback, so I think it'll be fine.
Publishing the tutorial on my site meant I needed to figure out some details with my site. I had the system stripping HTML tags. Unfortuately, I was stripping too many tags: the formatting was lost. I've since added the tags, so it looks good here. I'm pretty excited.
There's a lot of configuration details on the site. I'm trying to keep the base code unmodified so that I can update at any point. We'll see how long I can keep from fixing things.