Board Thread:Support Requests - Getting Started/@comment-27081052-20151103194048/@comment-4018164-20151103212524

Go to User blog:KassieFuent98 (can be accessed via your user page, by clicking the "Blog" tab), and click the "Create blog post" button, which would then lead you here. Pick a title for your blog, start writing and publish :)

As for your second question, you can write about anything you like, as long as it's not inappropriate or spammy or anything like that. Just like with anything that you do in Wikia, you must not break the Terms of Use or the Privacy Policy.