So I loved the stories and feel like its a great place! I hope that maybe one day I can contribute a good SCP, story, or something of that sort! I am a nerd. To the max. Thank you for having me!
It's great you're interested in contributing material to the site! I see you've got a sandbox, so you're off to a good start. Remember to bring your finished drafts to the IRC chat and/or the drafts forums for reviews so you can make the necessary edits before a mainsite post.
Also, do familiarize yourself with the resources available to authors in the Guide Hub, and consider reading through some of the existing feedback threads and the discussion pages of the SCP articles and tales you've enjoyed—ultimately, writing for the site means writing for an audience, so it's good to make sure you know what the community likes!
Best of luck with your writing, and welcome to the site!